To me it seems like a joke.

To the extent that it is a joke it is a bad joke, inappropriate to the context, with an undesirable expected influence, encouraging flawed patterns of thought. ie. The feature of humor that allows it to bypass critical facilities would makes the joke interpretation worse than a more direct interpretation.

Something being a 'joke' does not make it immune from criticism. Or, rather, it often does make it immune from criticism but this is unfortunate. This comment in response to the text that it quotes being overwhelmingly positively received is a negative sign. I speculate (or perhaps merely hope) that in a different thread it may not have been given as much leeway.