Why equal TB rewards is bad for the game.

I dont mind it. We have a 3 guild alliance where we complete HAAt and Pit regularly. However they have started switching players out so we have a high medium low, which is a little disappointing however we will all still be able to clear HAAT. I really hope they dont limit Character shards to just one phaes like they did with HAAT. Would be nice to have lets say 10 shards for clearing phase 12, 10 for phase 10/11 8 for phase 8,9 and like 5 for phases 5-7 or something like that. That way the more powerful guilds who progress all the way through TB are rewarded but the guilds only completing half can make progress albiet at only half the time.