I would have agreed with you in the past if the NBA hadn't turned into ref ball. Shit has been getting worse every year. It's almost a guarantee in every playoff game in every series the refs will at a minimum sway momentum to keep games interesting.
This Rockets/Warriors series has been dog shit so far. Game 1 the Dubs got the majority of ref help, game 2 the Rockets got the majority of ref help, but whats funny about game 2 the refs only helped them get back just enough to try and cover the spread, the spread was 5.5, Rockets lost by 6 lol refs tried their hardest to sway that shit just enough, but barely missed.
I can guarantee the Warriors will get fucked in either game 3 or 4 solely to extend the series.
NFL and NHL are fucking horrible ref swayed sports also.
MMA and Boxing are just pure ref and judge fuckery.
Baseball might be the only big sport left that isn't swayed horribly by officiating (although they have their moments with shitty strike zones).