Not trying to pi$$ on peoples fireworks at all - whatever floats their boat same as whatever floats mine for me.
However, this XP grab I can't see doing anything other than implode. For starters paid for passes can weight it so it's a bit skewed anyway, but after that how many CCs are ever going to get to L15 in a sensible time frame?
This whole thing ignores smaller CCs, or will by definition as time goes by. Good luck to the larger CCs, but reminds me a of typical sci fi crime balls up:
Create a beast to kill the predator that must eat you to survive, but forget to tell it not do that by starving out the food source - namely you (WGT). OK a little out there but as far as levels actually being physically worth getting to about as much logic as you need - no point worrying IMO.
All a v silly, ill thought out idea which we thought could not get any worse, but WGT trumped us again with the CC Event Debacle. Never say never where WGT is concerned lately :)
Weekly XPs should ideally be done by CC size, and very ideally not be skewed at all by paid for passes. Dream on for both, lol, but so can WGT :)