I admit, my threat model doesn't include indefinite detention at a border, but that is a valid concern depending in where you are going. Unfortunately, it's com

I admit, my threat model doesn't include indefinite detention at a border, but that is a valid concern depending in where you are going. Unfortunately, it's common not to believe people that say they don't know their password, otherwise the solution would be to just change your password and leave it at home without learning it. For me, the time lockout changes the claim you can make to an official from "I don't know the passwords, I have a record that I didn't bring with me, but can retrieve online" to "I don't know the passwords and have no ability to retrieve them while here". For me, that distinction is valuable and the benefits outweigh the risks. But everyone has different requirements and risk sensitivity.