Gameplay is inseparable from a story told.
Otherwise they would just make another movie.
Noo I don't want to have to sit through the headache of finding players to do extreme runs, or schedule time to do ultimate progs just to see interesting mechanics And I really don't want to have to sit in a box with a boss thrown at me to be engaged either. Trials and raids in this game are not replacements for dungeon experiences. And throwing decent players into time-consuming content and ONLY time-consuming content is a great way to alienate casual players who play games to not be bored.
I want cool, casual, quick in/quick out scenarios that respect my time, and my abilities as a level-capped player.
