Golden State knows a Game 7 back in Dallas is going to be rough and will take a damn near perfect game to win. They'll come out with intensity brewed by the fact that they had this game and blew it. Their crowd will be in it bigger than ever, and they'll probably get calls to go their way. Best thing they can do is draw blood early and don't look back. If they let this loss get to them, they will lose Game 6 and have absolutely no momentum in Game 7.
Despite losing, there were a lot of positives for them in Game 5. They tried to win the game by burning time at the end in halfcourt sets and it destroyed them. I don't think Nellie will make the same mistake again. They will most likely win Game 6. As much as I want the Spurs-Mavs rematch, I don't think it's going to happen. Not this season, anyway. Golden State cannot afford to roll dice with a 7th game. I think they take Game 6.