Maybe bugs just were too complicated to fix fast enough for the tournament. Especially the notorious free technology bug is reported being currently worked on, but not fixed yet.
One part of me was secretly kinda hoping for some real drama from free technology bug at the tournament, but alas we get fair games instead 
Also IMO it is not that important, what version is used at the tournament. Majority of players won’t play at the tournament and so it only affects spectating for them. Hopefully we get proper major patch soon with bug fixes and new features.