We even have alternative meanings for bias within ML, such as for the bias added before non-linearities in many neural networks.
He obviously means censored LLMs, and I think his view is actually right, although I'm far from sure that these firms are in some kind of scheme to produce LLMs biased in this sense.
Uncensored, tunable LLMs under the full control of their users could scour the internet for propaganda, look for connections between people and organisations and just generally make the work of propagandists who don't have their reader's interests in mind more difficult.
I think we'll end up with that anyway but it's a reasonable fear that there'd be people trying to prevent us from getting there.