@DragonParadox You know it always bothered me, just thinking back to that whole Tyrell interaction. I mean, I liked reading it, because it feels like Viserys was my spirit animal in that whole encounter where he was being super sassy to Olenna and Mace, and for once Olenna didn't sass Viserys back because things were looking... well, they were looking pretty goddamn dire. Not only did we embarrass them in the heart of their power, but we had control over that entire discussion, like the actual-factual King walked into their Keep and became lord and master without even asking--or even side-eyeing--the idea of them pledging fealty to us.
While their captor/guardian was standing
right there.
So one has to think about the juxtaposition. Either the Queen is a terrible leader for these specific circumstances--which could make sense given her placement as a Sage rather than a ruler, but then who else but the Sage would have the wisdom and intelligence necessary to foresee dire threats and unfortunate circumstances?
Or she's completely incompetent, which is unlikely because her whole story, which is what Fey are down to their origin point, is being a hyper-competent polymath. Her base level is "I know the answer to that". Her enhanced state is "I knew the answer before there was a question."
So the final, more likely conclusion drawn--they purposefully ignored the threat to the people they promised to protect, somehow, not necessarily sending people who would guard them poorly, but not providing the tools and specialists necessary to prevent this purposefully.
Thing is, trailing the conversation with Willas, later on, which ended directly with Viserys (without much hope, albeit) offering to implicitly make all and any of the arrangements they previously made with the Fey, offering to facilitate trade for magic, to deal with problems the Fey couldn't (or as is rapidly being proven, wouldn't) deal with, and generally being mutually beneficial... with Viserys lampshading all he got was neutrality at the end of the day.
Azel cogently points out that all of these details line up with the Tyrells being fully aware of how badly they got screwed over by the Fey, and quite aware of how displeased we are with them, but also surprisingly forgiving for a person with all this blackmail and in a position of power imbalance over them, even if we have a legitimate grievance not even they had the cajones to deny our right to. And still wanting to side with the Fey Queen when it's finally time for the invasion.
Why is that so painfully clear, even now? Because they did none of those things. Even as we sarcastically, and then exasperatedly, pointed out to Mace and Olenna, and then Willas, that if they had just sent a letter or a "lost raven" to us, we would be all over that.
We'd return their phone calls, even with all the bad blood.
I want to say this is you vindicating all of my irrational hatred of that damned family, but you also go through great pains to make them nuanced, so as is traditional, I second guess myself--this isn't just straight forward "they're power hungry and traitorous", it's more like desperation. When you are
that far behind in the race, and someone is offering to help you get ahead again, and you stubbornly stay glued to the back of the pack, in a political and dynastic context it's insane to cling to ambitions. It's poignant in a way because Olenna and Mace are painted in canon as being down to the bone tunnel-visioned on making themselves royalty, even one step removed.
But there's gotta be a better reason than that. I figure, when you're facing the threat of most of your chief bannermen marching against you, and you're still bound and determined to go against the BBEG from the far east, and the Fire Nation finally attacks, there's more at stake for you than a crown, not when you have already conceded from the outset that Targaryen or Fey, there's a power imbalance in the relationship and only one of the two is offering to be 100% honest at all times with you, and hint hint, it's not the fey.
Edit: Just saying, Viserys reflecting on all of these, in hindsight, very obvious deductions at some point would be neat.