Irony, humour, etc

Well, at the First Things blog of all places, there's a decent post complaining about the attempts at humour at the Oscars show last night.  It goes on to note that the overuse of irony is actually the death of humour:

Irony, and its near-cousin sarcasm, is the lingua franca of popular culture. The more deeply we tread into this part of our national consciousness, the more we realize the breathtaking vanity of its values. Irony is, in the end, self-referential, so once it becomes self-self-referential, it has created a hall of mirrors that ultimately implodes into meaningless parodies of itself that are, well, humorless even to those toward whom the jokes were originally aimed.

When everything is ironic, irony ceases to be ironic. It lapses into mere meanness, leaving an incredibly bitter aftertaste. Indeed, the life-root of bullying just may be irony. What struck me last night was the utter brutality of much of the attempts at humor. The writers were equal-opportunity offenders, but this is, to some extent, what we find in a worldview where nothing is worth defending or treating as precious. I have a vague recollection that Henri Bergson once said that humor is the first step toward acceptance; I wonder if the corollary is true: if everything is acceptable, is there anything that can be humorous? Do rules, in some rudimentary way, actually generate humor? If comedy is always transgressive and the world (in the interest of tolerance) no longer allows transgression, then have we lost the ability to laugh? Based on the evidence of last night’s show, I have to wonder.

Actually, I think I stop understanding the argument by the last two sentences, but I was sort of with it up to then...