Sure it was - sophistry is pretended an issue is simple by (deliberately) ignoring alternatives.
If biometrics are fallible, it matters zero how secure the digital system behind it is. That's obvious, and a comment belaboring the digital security is beside the point.
As for how hard to spoof, just google it. There are dozens of folks with techniques and hacks right now. It'll only get worse.
You are the one using sophistry, if anyone is using it. You are completely (and willfully!) ignoring how vulnerable passwords are in any threat model that invalidates a FIDO2 implementation of Face ID. No threat model invalidates the security of Face ID for the Web without similarly invalidating passwords. At least, you have chosen not to present such a threat model, which would help my (apparent) failure of imagination.
You cannot protect your passwords from someone who would physically take your iPhone before you can lock it and who would have a life-size reconstruction of your face ready and waiting. Such a person could shoulder surf your passwords with far less effort, or compromise one of the dozens of websites the average user re-uses their passwords on. At a certain point, the person in this threat model will just pull out a wrench and beat you with it until you help them get into your account. https://xkcd.com/538/
If you can show how some random person on the other side of the internet having your fingerprint helps them get into a website using your account... that would be interesting discussion. As it is, they must have physical access to your device. Your biometrics are useless without physical access and rapid action, since the biometrics quickly become useless as the device falls into a state that requires the user's passcode.
You're completely ignoring everything I actually said in my comments, so I'm done here.
Corroborating you point: Safari on iPhone will autofill passwords with just a biometric, so if you have an unlocked iPhone and a clone of the user's biometric, you can access websites and potentially even change their passwords. If it's timed out or user deliberately disabled the biometric, then you will need the passcode to be able to access anything.
If biometrics are fallible, it matters zero how secure the digital system behind it is. That's obvious, and a comment belaboring the digital security is beside the point.
As for how hard to spoof, just google it. There are dozens of folks with techniques and hacks right now. It'll only get worse.