I'm having flashbacks to littlebigplanet.
I doubt very many sony fans expect KZ2 to do much of anything about PS3's 'struggle' on the marketplace.
There seems to be a perverse perception that the hype surrounding any major PS3 game reflects an expectation among 'sony fans' that the game will be a market-changer. There are definitely folks who have held such expectations, who may hold such expectations about KZ2 - and maybe they're worth poking fun at in a comic - but I would say they're in a small minority.
I've been no means part of the KZ2 hype parade, but I was there for LBP, and there for the same mocking resentment of hype for the game. The implication seemed to be that a fan of a game couldn't express too much excitement for a game unless it was going to 'save' PS3. There were literally people coming into LBP threads trying to downplay it with reference to sales, as if to ask "why the excitement? it's going to bomb!". It's a sales-age orientation run amuck.
I also think that regardless, GAF has a pretty good way of killing hype for undeserving games. Every game seems to attract its 'advocates' who hype, whether that hype gains traction or not is another matter. Usually GAF tosses aside games reasonably quickly after release if they're deemed to be not particularly worthy of it.