You know what I mean. After Mullins' shot last night, the game was over. There was basically nothing Duke could do. After MJ's shot, G'Town still had a chance. That is to say, UNC needed one more play to win -- whether that was a stop, a steal or just a G'Town missed shot.
Game winning shots is a statistic kept by the NBA, I believe. Or someone. It is not defined as the final FG made in a game. It is usually defined as a go-ahead shot with x seconds remaining -- I think x is usually 5 seconds but it might be 10.
The reason we see Webber's TO in montages (not as often as we used to) was because it ended the game for all intents and purposes. MJ's shot, as great and clutch as it was, did not.
Capel's shot did not end the game, true, but it turned what was a certain loss into a chance for Duke to win. Similarly, if Jenkins had missed the three pointer, Marcus Paige's tying shot would likely be far more famous than it is. It didn't decide the game (obviously) but it turned what was a certain loss into a contest that looked ready for OT.