This is an extreme example, also this person would never lose their job that easy if there were laws protecting workers.
But what I have seen here in Sweden is AI voiceover used in news reports where people have hidden identities. So clearly this has taken a job from someone who used to do this voiceover. But it's working, we have to adapt to these small changes that AI is bringing.
I think it's really the AI content that people care about. Devices to disguise a voice have been around for a long time, so I don't think it was a particularly widespread job in the first place.
(And maybe technological changes in that space have always been about style and perception instead of effectiveness? I mean you can always get a paid actor to pretend to be the disguised interviewee and use a radio to relay the answers the show wants.)