I dont agree.
I can see why you might think that way, but I dont find that a plausible argument in an organization that has been fighting (at that point) an eight year war against the Red Court and their half-vampires and mortal minions. Not under the eye of the six surviving Senior Council wizards.
Especially since less than half a page later, we were given a ringside look at the reaction speed and multitasking of the Merlin.
They're still human, and even if he did have the ability to prompt unusual hesitation with mind magic I don't think that it follows that he could stop Wizards who learn of what he's done to them well in advance from overcoming it.
It is not infantilizing them to point at their demonstrated canon performance and draw conclusions about their performance under similar circumstances.
It is especially not infantilizing them when the threat is an insider threat that has been embedded for more than fifteen years at this point in this AU, and has actively subverted most of the people who would normally be entrusted with dealing with this sort of thing. The immune system cant defend the body against HIV because HIV targets key cells of the immune system first
I think it is to do so without paying attention to the context things are happening in. I don't think anyone anticipated him having as wide spread influence as he ended up having and the time table they learned of it on didn't give them much time to prepare. If McCoy was told that Peabody has been running around trying to brainwash people and selling information to their enemies then it's unlikely he's going to come at him ti he's sure he knows the angles and can win the fight unless something as pressing as the plot of Turncoat forces his hand.
Peabody literally made Warden Captain-Commander Anastacia Luccio seduce and date Dresden so he could keep tabs on him through her. Yes, she was more vulnerable to this after swapping bodies, but she would have been under regular medical surveillance by senior people like Listens to Wind because she swapped bodies. And he did it anyway.
It's called out that he could only manage to do that both because of her vulnerability from the body switch and because it was something that could have happened naturally anyway. Like Molly's description of how she worked her mind magic; he highlighted and brought to the fore something that existed already.
It was unlikely circumstances would align for either of them to make that leap, but he didn't and couldn't twist minds around like that. He can and probably has done some horrific things, but he's not reprogramming people.
As to what they should have been doing; it's easy to say in hindsight what people should do to solve their problems, but given the pressing concerns and personalities of the people involved not having constant medical checkups with a senior council member doesn't seem that unreasonable to me.
One foci wont cut it.
What he did =/= how he did it =/= what he's currently doing =/= how to defuse it. Our experience with the Crown thus far in this quest has never been such that one question unravels all the important details of a person's guilt.
We need one wizard we don't care about losing as a foci. Once Molly knows about the brainwashing ink she can share that and McCoy or whoever we work with can take action with the understanding that their opponent has unwilling and unwitting agents. We don't need every detail to prompt the correct initial steps to handling the situation.
We're a social Exalt with social Excellencies as Key; we can deal with political consequences. We cant do fuckall about death, and it would take decades to even begin to replace wizard losses. There's a reason why enemy attacks have repeatedly targeted Council training facilities; those losses have ripple effects decades and centuries later.
In canon this affair ended up with the death of Peabody, but at the cost of fifty dead wizards, the death of Donald Morgan, a significant loss of internal faith, and with the Black Council putting their candidate on the Senior Council.
Which proximately contributed to White Council paralysis during Changes.
THATS what we are trying to avoid.
Social excellencies aren't arbitrarily capable of bending people to our whim. Preventing this disaster from exploding is important, but if we do it the wrong way we'll alienate the council anyway simply because they cannot allow outsiders to perform brain surgery on their organization.
This is a basic legitimacy thing, and a significant indicator of diplomatic stance. If we're making unilateral decisions about them then we're not really working with them as an ally.
If your entire objection is involving the Council in some way? Thats why we have a relationship with Dresden.
He's officially a senior Warden, and this would be his responsibility. The only reason we havent read him in yet is because we have doubts about his ability to keep a poker face, else we'd ask him to look.
Our close association with him poisons the well somewhat. It may also get him in trouble in the same way running an anti-corruption campaign using foreign agents would in any country on earth.
Kemmler could not have been an outlaw when he got access to Demonreach.
Nor could he have been some unknown.
Occult SuperMax doesnt accept just anyone.
No one was policing the place, and there's a difference between starting shit and defending yourself. Responding to events and making the calculation to exclude.
There was no official response to that incident in canon at all, which they chose to treat as a private matter until Dresden killed him a year later in White Night. Just like there was none here when the same thing happened, until Molly splattered Madrigal across the walls of the Raith ballroom
Other than the official delegation that Harry was part of that threatened him?
The war had them spread thin so it was unusual. It didn't make them well disposed to him. This is not a small thing you're talking about.