There's a tendency among those who wish to complain about officiating to use FTA as proof that there is or isn't bias in the way games are called. I'd submit that there's nothing about the game of basketball, at any level, that mandates that FTA be even and the fact that FTA may not be even is not proof of bias. It might readily prove that one team was more aggressive than the other, or that one team didn't move its feet defensively, or that one team chose to commit fouls rather than concede easy baskets, or that one team attacks the rim consistently (not just that it scores points in the paint) while the other settles for jump shots.