who said diablo 2 is a social game? if you make a FREE FOR ALL event that is supposed to be FREE FOR ALL and not a TEAM VERSUS PLEBS match.
also for the arguement "a certain comp would win all 2v2s", no. this is diablo 2, anything can be countered by something. meta will shift all the time and people will actually spend time on making different pvp oriented, probably much more defensive builds which will consume time and wont make server drop %80 of the player base after a few months i think.
this is why prizes would get better but not with clanman events.