I can see both sides… although, I somewhat lean more with Rob on this one.
If you are tweaking documents long before they are done, then one must expect to re-edit the layout that occurred.
However, I do see that maybe some functionality needs to exist. If I am a teacher creating a worksheet/test/etc., and next year I realize that we didn’t cover a particular topic or I need to add some questions, it would be beneficial to have some kind of “lock current page and contents” function, where I can then delete unwanted stuff or add stuff, without interfering with the stuff that already took time to edit. (A function somewhat similar to insert mode)
Also, maybe a page turn algorithm is an answer as well? That way people making daily/weekly changes don’t have to worry so much about pages working and parts working correctly.
All this to say though, if you make changes, one should expect some level of editing on the back on end.
Robby