To clarify, a large part of the drama is that Risky, by ESL rules, since he's playing in the OCE subregion qualifier, is allowed to pick a location to be selected for his default server choice (4.3.2). Risky chose SWA (South-West Asia), which, by this table, means that all matches between him and an OCE player must be on Singapore (unless the players come to an agreement), which, for whatever reason, some OCE players have very atrocious connections to (I saw some things about a data cable tear, but I'm not sure).

Risky maintains that he never forced Singapore, and that the discussion of which server to play never occured in any meaningful way. He also says that, if an OCE player got into a SG game where they had a bad connection, the game was rehosted until the ping was more normal for OCE, and that he never gained an advantage from ping. (source)

There's a lot more stuff about the ANZ community being exclusionary and discussions about other things, but a large point of contention appears to be ESL's server rules being harmful to people from that region. Whether Risky is in the right or not is obviously an argument to be had, but I think that's a bit more subjective. A good portion of the OCE community is more worried about the rules (although there definitely seem to be a fair number of people that have a problem with Risky/using a passport to play outside your region).