Well, fortunately it was deleted, so Jake won't have to deal with it on a "mass" level anyway.
I agree with you about the MTV Video Awards and the Espys - I've never forgiven Lance for telling that joke, and I honestly had a hard time forgiving Jake for finding it funny and allowing them to use it in such a notoriously homophobic venue (if what Lance said he said about it - that he "loved" it - really was true).
This didn't seem nearly as mean-spirited to me as those jokes did - I thought this was more about the character wanting to see some real action between the two of them because he was turned on by it and about making fun of people who refuse to see the movie because they think these very kinds of things will be in it, or the people like the guy who stomped out of one of my screenings of it at the beginning of the Siesta Motel scene because he couldn't even stand the sight of two men being tender in bed together after the (unshown) fact.
I guess the "Gyllenhaal's mouth was practically watering" line struck me as funny because it really wasn't true, and it was really more a reflection on the guy who was saying it instead.
Maybe that's just me