There's also a thing with MVP: Black and their use of secret bug knowledge first here https://www.reddit.com/r/heroesofthestorm/comments/3dysue/did_mvp_black_purposely_exploit_against_virtuspro/
then there's this at about 41:25 https://www.youtube.com/watch?v=aPcAbUcTRhwEh
MVP black studied tempo storm (only tempo storm they told in reviews) then on the day of their match against tempo storm, mvp black told the judges minutes before the matches would start about a bug with one of tempo storms heroes in their roster. The organisation banned the hero from the tournament outright, tempo storm didnt have any time to think up solutions or back up draft strategies, and mvp basically got a free extra ban in their matches against tempo storm, by waiting until the most, well, d-ish time to tell about it. Because they knew about it, didnt tell about it before the torurnament, didnt tell it at the start of the tournament, didnt tell about it when the hero was used the day before in the tournament against other teams.
I guess they learned from the first time how to be a lil' more subtle about playing the meta-meta-game.
The podcast in the youtube video also went on about some other reasons why the tournament was hard to follow. From how it wasnt advertised at all, to technical issues to some casters not knowing the teams to some not even knowing the game.