Of course, some even now show that online therapy benefice them more than real life one.

What? Deepfakes are already a thing, its absolutly not a difficult problem to artifical made face to talk with you.

Like I said, only bias would be people, which wouldnt like to speak with AI just because they dont want, even if that AI is way better and succesfull in therapy.

Of course its not only about words, but you can still mimic that. Humans are basically biological computers so its nothing strange that we will build better computers that we already are.