I'm pretty sure, those competative players are a minority not the majority. I hardly grasp how competativity should really fit in. The fights are made for team effort, competativity counters that? Sure, give some options to troll your teammates, but competativity seems really odd. Kill the others at the start and you 'won'.
Instead of making the game more appealing it makes it less appealing, at least my friend and I are really unhappy about this exp imbalance shit.
there will be parts where you will be forced to pvp your team and kill your own party members... such as the arena in act 1 and supposedly near the end of the game as well from what ive heard.. 2 known times where you are forced to fight your own team.. on top of that they mention all the time how you can split up and do your own thing and poison your team and even declare war on your party members which will make you enemies and if you come into range will be drawn into combat as if they were hostile mobs.
its clear they focused alot on competitive play this time.