No, its just a funny sitcom joke that's become a theme for funny holiday parties.
To assert that Festivus has any deeper meaning denies the very spirit of Festivus.
Hmmmm. Suffering from Multiple Personalities Disorder are we? (smile)
You like that so much, then try this. Throw a birthday party for your wife, and then at the last minute, re-name it "PamelaAndersonus," give it over to a bunch of folks who despise your wife, and join them in ignoring her on her day.
See how that one goes over. And what it says about you.
There's no need for a smarmy substitute for Christmas. The real thing is just fine.
Dan
PS -- and maybe sometime, one of you will write a serious essay explaining how a really repellent idea is "okay," as long as it started on a comedy TV show. Maybe we can get Seinfeld to do a show about lying, and make that funny and cool? Or lying? Or immorality? Or stealing? Or abusing other people? Or being selfish jerks?
And then, when anyone tries to talk about how wretched it is to lie or steal, you can say, "Hey, lighten up; it started on a a comedy show!
Oh, and anyway, they already did those themes, didn't they?