Putting aside the specifics of the case, the general situation is pretty disturbing:

1. Citizen puts significant time and resources towards a very specific, non-transferable skill-set for their chosen profession.
2. Citizen lands job for which they've trained.
3. Citizen is put on secret government list.
4. Employer informs citizen that unless they get off said secret list, they will be fired (and likely nigh-unhireable in their industry).
5. Citizen files grievance with appropriate government agency.
6. Agency refuses to confirm or deny citizen's position on the secret list, or provide any active avenues for appeal or a timeline for decision.
7. Citizen waits, their livelihood in the balance.

If the government is going to put a citizen on what is functionally a Do Not Employ list, there needs to be notification as well as a formal--and reasonably expedient--appeals process. While it's certainly not the government's job to guarantee employment, if the government is actively preventing someone from being employed, they need to be held accountable.