when I tap unlock, my phone automatically provides me with the correct method of entry.
When I use a pin, it provides the pin pad, when I use a fingerprint it provides the fingerprint icon to touch.
Having stolen the phone, it now provides the assailant with a handy crib sheet on method of entry.
why not have, tap unlock and be presented with a list of all four methods of unlock, pin, passphrase, fingerprint, or fingerprint and pin. you know which one to choose, the assailant has to guess, then waste time on the wrong input method, while the auto reboot ticks down. just a thought...