Mental mistakes happen all the time. Obviously the most famous is Chris Webber's infamous timeout (Probably the worst of all).
I think the way our season started, the emotion that we all have for the team, and the frustration on the first 9 games are clouding our judgement.
This team played short handed against a very good team in the west. They answered all the questions we have about them. The fought, they were resilient, they played great defense when they needed to, and they played great offense when they needed too. Furthermore, everyone played their role exactly the way they needed to. We've wanted answers to the above questions all season, and the celtics responded.
Sure, the foul shouldn't have happened, but whatever. We lost to one of the best teams in the west on a prayer. I am ok with it.