We should wait to see what the Crown tells us first before deciding anything. Odin is planning on poking them either way.
Temperance is not a virtue the exalted have ever possessed. I have doubts about the idea that a pair of high essence solaroids from another age let loose on the world would do anything other than build kingdoms for themselves and try to rebuild the world to suit their sensibilities.
Something very, very screwy is going on. Because we also know of at least three Infernals running in Middle East within recorded history, one of whom made Gilgamesh.
Personally, I would start looking at the Tower of Babel accident, and how White God is not that shu about mass memory modifications.
Do you have cites on that? Potentially being a thing and actually being a thing are very different.
One or two exaltations briefly brushing the world and getting stuck back in a box is one thing, but upwards of five solaroids all coming out and then quietly going away without anyone* remembering enough to recognize them? That's too ludicrous to make sense.
* Beyond people literally older than the current iteration of linear time.
Ok, now, this part here I disagree with. We are an E4 circle. We are not helpless against peer opponents. And unless the exalts in question are E6+ elders, they are going to be peer opponents, not superior beings we can't hope to stop or direct.
My assumption is that they'd be 6+ because someone trapped them instead of killing them.
E1-5 are killable for less effort than permanently locking them up, so if they're living humans there's almost certainly something making super jail a better option.
Even if they're not, ExWoD favors solars to a significant degree. We only have two practical ways to measure up; crafting equipment for ourselves and building our custom charm set in such a way that it bridges the gap.
We don't have serious equipment built yet, and even if we had more charms from the current FCF stuff on whole it currently lacks the synergy and/or focus to actually make a difference in this context.
A combat build could trivially drown our entire party in excellency backed attacks in the first turn, and any sort of social build would be lethally dangerous.
Being unreadable, including to the crown given how things have gone in the past, but knowing exactly what Molly's about at a glance is entirely possible.
Even looking right at them we would be unable to tell a good actor from a bad one because a bad actor with any investment in avoiding detection could look like whatever we want to find.
So it comes down to how much you trust someone from the days where "an eye for an eye" was considered a progressive judicial reform with unlimited cosmic power whose nature cannot be known with certainty in advance.