If you want to believe that those foul calls made the difference, you go right ahead. My point of view on this is, admittedly, pretty binary: if you are subject to some questionable calls, and you lose by two possessions or less, and you want to blame the refs? Sure, I'll hear you out. If you lose by double-digits, you're just whining.
A game doesn’t have to end within 5 for the refs to have made an impact