I think you're thinking too much into it.The problem is that the league has improved at a faster rate than the officiating. The game is too fast for them now. Until we get better refs here, there will be problems.
Refs suck everywhere and everyone complains about them no matter the sport or the league. We can get the all the best refs from around the world to come here and we will all still complain about them.
I see it all the time on twitter, fans from other sports, leagues, etc. constantly saying that refereeing is one of the biggest issue with that sport/league.