I've always found this a weird argument and discussion- We've been "wasting" EXP for basically forever. Why do we need to manufacture uses for Progression Points, as I like to call them? Why has no one asked for excess EXP specifically to be given a use? And most RPGs with any kind of leveling system simply stop when you reach the max level, mechanics where you spend EXP after reaching the cap to do something are not exactly common.