I respect the consistency of your viewpoint, but mandating that all employees undergo a specific regimen of prophylactic mental health treatment would be incredibly unpopular and probably illegal.
How so? I believe that police officers need to do this after particularly bad encounters, for example. (In fact if you search for "police psychological interview" you'll find hundreds of pages and even YouTube videos showing "how to pass your police psychological exam.") So it's definitely not illegal, at least not across the board.
