Exactly. Short passwords/longish pins suffice for short durations if they are random (i.e. not guessable), particularly if the device requires external hardware to brute force due to attempt duration scaling.
I currently use a generated long password on my Android phone and have adapted to the extra work, but having the option to enter a password once a day and a pin or shorter password throughout that day would be a welcome convenience option, and it's not really significantly more onerous than just a pin.
