Chomsky can't fit the round intelligence of ChatGPT into the square hole of human intelligence, so instead he makes a case that it is an entirely disqualified from that category, rather than rethinking his own paradigm. He is, to put it bluntly, a fear-driven bigot defending his terrain as a public intellectual.
The problem isn't whether or not he caught dodgy people. The problem is that in the process "I bet" he spied on a lot of people who were not dodgy, who had the right to have their privacy respected.
He worked on the technical support for targeted surveillance of serious organised crime and terror threats. So if you look at this realistically, no, his kit wouldn't have been used to spy on people who weren't at least suspected of being dodgy.
More or less saying "the UI has gone bad", but not in the functional sense. It's gone bad in the sense of UI principals and aesthetics, but not usability. Not a single complaint about usability.