Well, I think I understand LeCun has a broader critique that any sort of generated-in-a-vacuum text which doesn't interact with meatspace is fundamentally going to be prone toward divergence. Which, I might agree with, but is also, just, like, his opinion, man. Or put less colloquially, that's a philosophical stance sitting next to the math argument for divergence.

I do think this setup can answer (much of) the math argument.