If would be nice to configure this to not autocompile on actions such as refactor and save all to prevent the UI delay
when this occurs.
If refactoring doesn't work for some reasons, you don't get any errors until the next save or clean and build. Until there you might not think about the refactoring as the root of the problem.
I think the proposal would add some unnecessary intransparancy to CoS which might cause more bad mood than it would improve usability.