no it wasn't called evenly
Blazers had a 16-2 first half edge in FT's. The officials looked at that at halftime and made adjustments, and one of the adjustments was to give the Bulls the benefit of the doubt on both ends of the floor. That's how the Bulls had a 23-6 edge in FT's in the 2nd half
now you can look at the FT totals for the two teams and say "look, it was pretty even". But the reality is that the officials changed how they called the game at halftime and it favored the bump & grind defense the Bulls were playing.
that's not to say that was the main reason, or only reason, the Bulls won. But it was just more headwind a team playing a B2B and 3rd in 4 nights was facing. Good officiating wouldn't have 'needed' a big adjustment at halftime. it would have remained consistent. This was not good officiating.