While I agree the loss isn't entirely on Gillespie, the fact is that he was the guy brought in for specifically these kinds of games and situations. If it was a matter of just missing some big shots, different story, but committing the kind of unforced errors he did three times down the stretch (Barnes aptly refers to them as pick 6's) that all resulted in fast break layups - that's like a potential 12-point swing. And while other missed FT's, he's the guy we want shooting them in those spots, an 87% shooter.
I don't get into comparing players to former players, especially a legend like ZZ. We'll never see his kind again, and the entire idea of VFL's pretty much died with him and Mashack as well.