Master Password required to be entered every 2 weeks on Beta 8.5.0

Until yesterday, I thought it is arbitrary and pestering to require the master password sometimes, although a pin is set.
Until I learned my father, always using the Windows hello pin on his computer, completely forgot his Windows password behind his pin. He didn't record it anywhere, even he thought he has. He used only the pin, for months, probably a year or longer. I had to use some recovery means to get him back into full usage of his account.
So I admit it's actually a good thing to require the master password now and then to remind you to memorize it.