They would solve the dearth in casual content if they just made more than 3 alliance raids per expansion and went back to adding a bunch of non-msq trials. People liked Shadowbringers not only because the story was actually good, but because it had 3 extra alliance raids (Bozja) on top of the Nier stuff, and 3 sidequest trials that were part of the best storyline in the entire game. Endwalker literally only had that completely forgettable Manderville trial that didn't even get an extreme version. Oh and those weird dungeon things that most people either completely ignored or one-and-done'd.