I got it in my roulette and people really do have trouble with relatively simple mechanics (stay behind pillar when she jumps, kill feathers) its even worse when its just one person messing up and wiping the party, despite repeated attempts to help them do it right. I'm one of those people who really does love helping new players, but sometimes it can be really frustrating when its the same person on the same mechanic.

Nerf not needed, a few wipes and some understanding will generally be enough to figure out all mechanics, just because the game is more centered around casual play doesn't mean mildly challenging fights with a few mechanics should be nerfed.