The tl;dr version of this is that a frighteningly large amount of people in the fighting game community fit into three categories, some falling in more than one category:
1. Abuser
2. Heard about abuse, actively tried to hide abuse and/or discredit victims
3. Heard about abuse, did nothing about it
I'm horrified but also not surprised that a community left to its own devices had no ethical guidelines let alone an establishment of actual oversight.
This isn't the end of the FGC as a whole. Games companies will distance themselves from the existing entities like EVO as well as the outed abusers, several of whom should probably be charged from a legal standpoint. However, these companies aren't going to stop making competitive games, and they know how important sanctioned events are to keeping said games relevant. There are a lot of things that can be done moving forward to make the events and space safer for people, particularly younger people.
I hope the egregious string of allegations will deter people in the future. However, what has happened in the FGC speaks to a larger issue we have as a society that does very little in supporting and protecting its most vulnerable members.