Ironically, Chomsky later said that Foucault was the most amoral man he ever met, whereas I would argue that Foucault was simply pointing out that Chomsky’s “morality” is in fact a form of nihilism.
I think people come to Chomsky and essentially worship him for precisely that reason. He allows them to feel justified in their refusal to think. They never have to ask themselves any difficult questions or provide any difficult answers. It’s a form of intellectual cowardice essentially, but I’m sure you can see its appeal.