You have no gotdamn idea, and the drama was mainly from the Smash community itself.
The idea was laughed at when it was introduced, but when rational people from both sides looked at the ruleset (some items were still banned, like the Stopwatch which could lead to inifinites, among other things), people who were actually going to...you know, PLAY, warmed up to it.
Cue the bitching from the other side of the Smash Community. They were so up in arms about how EVO was "going out of their way to spite them" by using this ruleset (and not the "correct" ruleset that the Smash Community used) that some people actually went and tried to boycott the event. Naturally, me and my friends went to EVO and had a blast, while the naysayers stayed home with their arms crossed. I nearly made it out of my pool too, but SK91 put an end to my run.