Don’t know about the US but in Sweden teachers are plagued by mandatory administrative task, as well as a myriad of small tasks all unrelated to teaching.
From what I’ve heard from acquaintances who work(ed) as teachers, there’s a lot of of documentation of the students’ progress that takes a lot of time to enter but usually is write-only.
If it's known to be write-only, then only they are to blame for wasting time. They could literally write anything, or nothing, and nobody would ever know, right? Otherwise, it's not write-only.