Seth Greenberg on ESPN right after the game defended Dixon's decision well, IMO. It's a coach's job to make sure things happen as he wants, esp the last play of the game. Greenberg, however, also made the point that the Pitt defender who was initially on the outside of Ennis allowed Ennis to get outside of him, and thus allowed the right-handed Ennis to shoot the ball relatively uncontested. If the Pitt defenders kept him bracketed, that would have made the shot all the more difficult. The defender crossed over when Ennis shot, but by then it was too late.
Either way, Ennis obviously made the right choice, executed well, and made a great shot. However, even the ever-gracious Boeheim characterized the shot as "lucky". But it was ungracious of Pitt (Zanna) to call it "lucky". They should say he made a great shot, and move on.