Hit a nerve, did I?
It's no secret that Americans are horrible at understanding British humor. That's not a reflection of anything other than culture, so don't chuck a pissfit thinking it's an insult.
Actually, I feel Americans are fine at understanding British humor. I have howled at Monty python's flying circus, and love John Edwards' bits on the daily show. I love misfits and have watched(and liked) many British comedies. And, many of my friends and elders have enjoyed the same things. And immediately after I read that quote, I knew it was fecetious.
Don't generalize us Americans.