That's a humanity thing IE if someone is going to be a dick like that, they would probably get your password anyways or just take it and factory reset/sell.
I wonder if there will be a toggle "on/off" so that if you want a normal passcode then you can have that as well.
I don't understand how secure people want their phone from the logging in. Personally, I don't want to have a 256 character password to hope that my phone is secure or anything like it. I guess I don't know what other people do to/with their phones to need so much "security".
Some do quite a bit, like banking and things like that. If those apps implement fingerprint login as well, that could be a thing.