This is using biometrics on Fido U2F (universal two factor). The latter being encouraging, the former, certainly on its own, not so much.
I see biometric authentication as extremely dangerous and a threat to freedom and the last piece in the surveillance state puzzle. Up to now they have to link what you say or do online to your device, then try to link the device to you to learn your real world identity. Most of the time that is not a life or death issue but what happens when you are a dissident living under an oppressive regime and you want to alert the world to what is going on ? Would you dare express your anti government opinions online when you know you have to submit your biometrics to gain access ? The same biometrics you were coerced into using since you were a child at school to log into the school computer network (already about to happen when schools adopt Windows 10), your cellphone, your social networking account, email, and then as an adult your online bank account, irs account and everything else. That is where biometric authentication will take us I am quite sure of it and once they do away with passwords althogether we will be in the same boat as the Japenese cellphone users, no choice but to comply.
Maybe biometric pseudonyms can be emulated locally in software. At some point, it's all just data. And users have physical control over their devices.
