Doc Rivers should be pissed at his team for blowing a 13 point lead with under 4 minutes to play in the game that probably decides the series, never mind being pissed about the refs.
I feel his pain because that out of bounds play was horseshit but there should have been a foul on that play and the refs were obviously making up for it, they do it all the time its nothing new.
If you don't want the refs having that much of a bearing on the outcome then don't get in that position in the first place, learn how to close a team out when you have them practically dead with less than 4 minutes left in the game you fucking dipshit.