He should have hit the ball ahead to Giffey and gotten the gimme two that way, but I'd rather go get the bucket there than dribble back out and have to make foul shots, when going 1-2 still leaves the door open a crack. The two points made it three possessions. If he blew a dunk, I'd have had a fit about blowing the dunk, but not the decision to try to score.
If you're ever in that situation up one with less than three seconds left and nobody near you, you shouldn't score because it stops the clock and gives the other team a chance at a tying three, but that takes a really heady player (sort of like the football player who didn't score a TD up one and kneeled down on the one, allowing his team to run out the clock - which drove Vegas and fantasy football people nuts). Forget who that was.