In one of the videos the AI quips back things like "Happens to the best of us" - its basically pretending to be human and that feels kind of creepy and weird, like it's trying to cultivate a para-social emotional bond.
I just want voice assistants to reliably understand what I say and do what I mean
So hopefully you can turn that off.
There are plenty of applications for that more human conversational style though (from mock interviews, improv practice, learning languages, etc) - I just don't want that for most things.
I doubt you can turn that off. That's how they upgrade it up from a tool to an engagement optimized addiction platform.