Actually, I saw their concern for industry being the target of the humor. Haskell is what it is; for the Haskell community to worry about industrial relevance is a funny, un-self-aware and touchingly pathetic "me too" reflex, like Bill Gates worrying about his pick-up skills or Bill Clinton wondering if his wife trusts him around other women.

(Sorry if that sounds overly political. I'm not a Bill Clinton hater or even disliker, but it's a perfect example and I just can't resist.)