I think the concern fans have is that are the 10% they get wrong indicates a skew? Fans are not the most rational people, and us old timers still have extremely unhappy memories. So, it's possible we are finding conspiracies where none exist.
However, it would not surprise me, if refs, as most humans, tend to prefer the home team and Heat over the Kings. Poor officiating is something we can all accept, as long as we feel that it's not biased.
That said, I don't think a day will ever come where fans, particularly from small markets, don't believe the refs/league shafted them on purpose.