He seems so desperate to sell AI that he forgot such thing already exists. It's called family or a close friend.
I know there are people who truly have no one and they could benefit from a therapist. Having them rely on AI could prove risky specially if the person is suffering from depression. What if AI pushes them towards committing suicide? And I'll probably be told that OpenAI or Meta or MS can put guardrails against this. What happens when that fails (and we've seen it fail)? Who'll be held accountable? Does an LLM take the hippocratic oath? Are we actually abandoning all standards in favour of Mark Zuckerberg making more billions of dollars?