Thank you for the feedback!
For multifunctional, I believed the intent was that the levels would be used for multiple things.
So the Staging Area level is used as a Leaderboard, Equipment Shop, Companion Recruitment Area, and Tutorial/Training room.
The Arena is used(but objects in it are rearranged) for every stage's battle.
This is in contrast with a more linear level design that would have each stage in a new area.
I get what you mean with the QTEs, my bias going in was that the best QTE was not to have them at all, but second best at least wouldn't interrupt the game flow.