Sounds like bullshit since I’ve not had to re-enter a password ever.
Did you get this week’s IOS update? That could be where it is. I did not load the newest one yet.
This only happens if you don't unlock your device after a certain period of time. I run into it when I don't touch my iPad for a long period, using my MacBook instead, for example. When I return to my iPad after not using it for a day, for example, it will ask for my passcode, where before it would require two days before it would require that. I was wondering why it was asking more frequently for the passcode. Now I know. This shorter period is a bit more secure from the authorities forcing me to unlock it by using my finger against my will.
Under law they cannot force me to reveal my passcode against my will, but they can force my finger onto the TouchID sensor after they have a court order. A 48 hour delay before requiring my passcode allowed time for the police to get a court order. An eight hour delay makes that much more difficult, so they cannot go data fishing while doing just a mere traffic stop.
It’s been around for a while. Random intervals, and a sound policy IMHO. It’s not intrusive, and otherwise I just use Touch ID.
I won’t use a password to get into my iphone, it’s a pain & I have nothing to hide. Just my apple ID, which is of course, required.