"Chomsky was probably the foremost advocate of the overthrow of behaviourist theory in linguistics, and now no-one takes extreme behaviourism a la BF Skinner serious (as an explanation of linguistic behaviour), but this rejection is not currently labelled as 'Chomskian'. It's just linguistics."

My impression was that Chomsky had effectively replaced extreme behaviorism with extreme "Chomskianism", which had then assumed the name of linguistics. Extreme behaviorism is pretty goofy, but less extreme versions have some good points.