I broadly trust apples stance on all of that.

I can however revoke a 6 digit pin at any time, my fingerprints and/or face not so much.

So entirely for me, the balance is use a pin, I understand that different people feel differently and that is entirely their choice as it should be.

Also, given how many times you enter a 6-digit number over a day, it's absolutely trivial to steal it. Let alone basic patterns people use, smudges etc.

In the use case of a mobile phone, apple's face id absolutely improves security several-fold.