Nobody's saying that home security is good. The point the parent was making is that, even with a "liveness test", compared to other biometric identification, this is a regression from fingerprint-based authentication for the iPhone.
Technically I could see FaceID being marginally more secure in one very specific edge case... If you are asleep. With TouchID, all that is needed is to push their finger to the phone. With FaceID, your eyes would need to be open (theoretically, let's see in practice).
Sure, for some people. I'd be surprised if you could unlock my phone with my hand without waking me up (light stomach sleeper).
Honestly, the easiest attack would just be to ask me about my dogs. 99.99% chance I'll unlock my phone, pull up pictures and show them to you (easy grab) or just hand you the phone and let you browse through them.
I’m a very heavy sleeper and a paranoid person, so unless I’m home (which I would be woken before you could get to my phone), I usually disable TouchID by rebooting (or now hitting power button repeatedly).
Nobody's saying that home security is good. The point the parent was making is that, even with a "liveness test", compared to other biometric identification, this is a regression from fingerprint-based authentication for the iPhone.