only thing, Tim & Eric, at least I don't believe, are lazy. They exist as a contemporary commentary in response to the rest of our media culture. Their show, again my opinion, is a developed (by being undeveloped) satire on the way/content we deliver to each other, Ffom mass market advertisements, network tv, cable access to even office interactions.
My opinion is that Tim & Eric don't work very hard at what they are doing. I think they come up with something and churn it out without refining it, and use what you are describing as a cop out to excuse their laziness. But this is truly a discussion for another time. I actually enjoy the production quality of the CCAA video. So there's that...