Genuine question here. I don't really get the idea of using print and then a pin. If I want more security, then I use the pin alone, if I want more convenience, then I use a print. Can someone please give me an example in which using both actually makes sense? I honestly don't see how using both would benefit security, it certainly does not benefit convenience.
I can see the use of 2 factor with a PIN and then a hardware key like a yubikey, or a pin and then a password, that does make sense to me, focused on security alone and doing away with convenience.