I'll have to disagree a little bit here. It was a very bad read but also bad game awareness. The Orioles are up 4-1, had one out and pitcher struggling. If the ball had gone off the catcher's glove and gone back to the wall, he would have been able to jog to 3B.
In that situation, he has to know that he can make it to 3rd easily because he's already in scoring position and with his speed, almost any single into the outfield is going to score him.