See, I wouldn't characterize it that way at all. Yes, it's very over-the-top, and it's certainly not a deathly serious look--but despite the potentially (and sometimes actually) silly set-up, there's some solid substance and story-telling as well.
Sure, it's "fun fantasy," not "deep fantasy," but while I'd say it had lots of "jokey"
elements, I wouldn't call it "jokey fantasy."
Which is not to say that Erik is wrong for disliking them*, just that I'm not entirely onboard with his characterization.
* You are, Erik; I'm just not
saying it.