I guess if you have the 10 seconds to do so, you could invoke the operating system hard reboot function, which at least on Android is pressing and holding power and volume up for 10 seconds. I don't know what it is on the iPhone.
Edit: Too bad there's not some sort of haptic to let you know that it accepted the command before it shuts down though.
Does it or does it just simply disable biometrics but leave it an AFU? I would hope that if it's going to disable the biometrics, that it would put it in BFU. But I do not know.
Yeah, don't get me wrong. Disabling the biometrics and requiring the pin is a good step. But I would like to see somebody test it to figure out whether it actually goes into BFU mode or not.