A single positive outcome is not enough to judge the technology beneficial, let alone safe.
It's almost as if we've built systems around this stuff for a reason.
I'm not defending the use of AI chatbots, but you'd be hard-pressed to come up with a worse solution for depression than the medical system.
We spent a long time finding something, but when we did it worked exceptionally well. We absolutely did not just increase the dose. And I'm almost certain the literature for this would NOT recommend an increase of dosage if the side effect was increased suicidality.
The demonisation of medication needs to stop. It is an important tool in the toolbelt for depression. It is not the end of the journey, but it makes that journey much easier to walk.
Opioids in the US are probably the most famous case though: https://en.wikipedia.org/wiki/Opioid_epidemic