It seems more like 2FA using body parts instead of a phone.
I leave my U2F token in way fewer places than I leave my fingerprints.
Can we agree to 3FA then?
I think the main concern with biometrics is surveillance. Not as much the security problems associated with using the same password everywhere.
i think the implication is that, because it is insecure, it will not be deployed everywhere.
Hmm, I'm not sure that makes sense, since a lot of the deployments we're concerned about don't involve authentication (using biometrics in place of passwords), but other kinds of surveillance.