As a Nest doorbell owner (came with the house), I think it's completely neutral and will never realistically have any import to anyone. I did turn off the facial recognition on mine, but if it could not be turned off, I would still not bother replacing the thing.
>I did turn off the facial recognition on mine
This only turns off facial recognition for you. If you care.
Google can easily post-process your footage (and, IMHO, does).
Shrug. When I get anyone coming to my house who doesn't carry a gps tracker on them at all times, usually Google's, I'll give it some more thought.
I'm actually one of those people — but yes I know we're a rarity.