I think we have to consider what was at stake in each instance. Louisville choked away one regular-season game. Granted, it was against the then-No. 1 team in the country . . . but it was one regular-season game.
By contrast, Webber's mistake was with 11 seconds left in the NCAA Championship game.
Similarly, Van de Velde's choke was on the last hole of the 1999 British Open - certainly one of the two or three most prestigious golf tournaments in the world.
We could have a reasonable conversation about the Webber mistake vs. Van de Velde's choke . . . but the Louisville choke against U.Va. last night isn't even close to being in the same category.
Just MHO, of course.