For me, what makes dungeons (particularly expert roulette dungeons) so unsatisfying is how monumentally condescending it is toward’s the player’s intelligence. I totally get wanting to make things easy to understand, but many of the mechanics treat the player like they’ve just started their first dungeon and still need the training wheels. Not that there’s anything wrong with that at all, but for ‘max-level dungeons’ I think it’s safe to at least let players try running without the training wheels lol.
And it doesn’t seem fair to say, ‘But you can just do Criterion/Savage/Ultimate if you don’t want incessantly easy content’ (looking at you Yoshi-P). I don’t think ‘you can only have fun in this game if you’re willing to commit to a static or finding people in party finder’ is a great message to be sending