Can you clarify which impact it could have ?
If you, as a user, knows a folder wont change anymore (simply because you are creating a specific folder structure), why would it impact Roon UX to disable its future scanning ? Especially if you keep the choice to re-enable it for monitoring later on ?
What I do read in @mike 's comment though is the following :
This is exactly what my request is about, with a proper justification, and people upvoting.