So any pilot who is off work for stress or any other mental illness should be permanently excluded from his/her chosen career? Or Doctors who treat people for mental illness knowing that they are still working as Aircrew should be legally forced to report them (against confidentiality 'codes')?
All this is going to do is to stop pilots self reporting any mentally related troubles.
Not an easy problem to solve. Needs some inventive Management. That's not good because how do you cost all this? - money being the only motive - sorry SAFETY (sic).