My hot take here is that the dungeons feel dumbed down because they require the trust AI to be able to do them, so you will never get interesting mechanics with trash before bosses. Even bosses have a hard time surprising you because it needs to be doable by the AI itself.

You cannot have an adventure without stakes, and gameplay wise the stakes are always to lose or wipe, but nothing Endwalker from the 2 years I've been playing has been threatening, maybe I saw a couple of wipes at the beginning of Smileton but after 6.1 it never happened again.

Some of the design decisions this expansion feel like a response to what the devs think the players find fun. People figured weird openers to have a 6 min buff aligment? Well let's make a 2 min buff aligment so everyone can do that easily. People liked wall to wall enemies and had to do some work not everyone could do to kill big amounts of mobs? Well let's do without aggro and make AoE as simple as possible so everyone can do it, cuz that's what players find fun right?