To be fair, what do you expect? If they talked carefully around its reception, it would be really obvious Will and Norm were stepping on eggshells; and they can't speak frankly about what a critical and financial bomb it was because Gary is far too much of a Hollywood novice to speak candidly (a megastar like Will Smith can go on Jimmy Fallon and make jokes about opening at no.3, a second-time screenwriter cannot).
Besides, Gary's great, but the speed at which he bandwagon's and shits on things, while funny to listen to, gives me the impression he's the type of person who can't handle criticism well.