Except you're talking about comedy IN anime.
Not anime that's...er...comedic? How can I put this...
Like, cromartie has jokes and shit. Stuff like Inuyasha is, "OOOH YOU BAKA HEAD, STOP EATING ALL MY SUGOI POCKY!"
"THAT'S FUNNY TO ME BECAUSE I UNDERSTAND WHAT THOSE THINGS ARE!"
It's like there's no development of a joke, no punchline, no structure. I mean, there's a time and a place for Zaniness, even in comedies and other anime which are based around comedy, but they don't lean on it like a crutch.