During some discussion, we believe it would be useful to prevent PowerShell Script operation from writing to the RAS Worker. In a shared environment with multiple developers from different teams. It will bring value to ensure that the developers aren't using the RAS Workers as there dumping ground for log, debugging, execution, etc.. files.
If a developer wants to WinRM to a remote server and write a file to that server, that is acceptable. Though writing files to RAS shouldn't be.