I believe an ai could write soap-opera-style drama and crappy hallmark romance. Probably has been for a while. Anyone can write those things even if they don’t have a good grasp of language.
But comedy is really difficult; you have to actually understand people, and culture, and communication, and language, and timing, and shock, and a bunch of other super nuanced shit.
If he thinks ai is ready for that, he’s ready to lose his own job to ai, cuz what a joker… (see? Comedy is hard!)