It's because not everyone can be as gifted as you.
I think the (arguably very prototypical) implementation is not what's interesting here. It's the concept itself. Natural language may soon become the default interface for most of the computing people do on a day to day basis, and tools like these will make it easier to create new applications in this space.
I'm gonna love trying to figure out what query gets the support chatbot to pair me with an actual human so that I can solve something that's off script
It's okay to be egoistic, it's not okay to attach 'ethical concerns' and immediately throw them out for your special cases. At this points it's just a hypocrisy.
Depends. Some people are heavily traumatized, e.g. from childhood abuse. The title provides almost no indication as to what the content might be (OK, maybe a little, but only if you speak German), so I think it's fair to warn others for whom this kind of stuff can be a problem. I agree with your sentiment for "regular people", though.