Technically, we were the ones who defeated three of those four, because two of them wanted to maintain a status quo or else instill a new kind that would bring about an apocalypse, another was forcibly ruling against the people's will, while the latter collapsed in on itself due to ongoing power struggles and Ascian influence. They were all later free to choose their own style of governance, Alphinaud had next to no influence on those matters. I don't see what fantasy that's shattering, other than that of living under tyranny. They were hardly sustainable forms of leadership, expect perhaps the theocracy in Ishgard before Thordan jumped off the deep end.
Eulmore's resolution was incredibly boring though, I will give you that. I don't know if it was because the end of 5.0 was so spectacular or if 5.1 was handled that poorly, but I slept through most of it. They have developed a bad habit of going to all the trouble of setting up the stories of these various places and then promptly shoo-ing them off stage when it's time to move onto something else.
There's something very satisfying about when a game delves into the deeper psychologies behind its characters, and I think it's part of the reason Emet-Selch is so popular. They really dove right into what's going on behind the mask, and it made him that much more fascinating and complex to the extent many found him to be relatable, which is quite tremendous when you think about what he actually did post-sundering, even just during his tenure as Solus. We're shaped by such trivial things as our family, our childhood and our upbringing, even the big bads and seemingly all powerful rulers ever-present in these fantasy games, and I always enjoy when they remind us of that.
As another example, I appreciated how they frequently hint at Aymeric being deeply affected by the relationship he had with his father and how he still struggles with it. It's very subtle, yet I felt it really added a lot to his character.