@Cycloptichorn,
How "explosive" is this provision? Long-standing Federal law calls for precisely the same thing. Then President Reagan used that provision of the Federal law to fire all the air traffic controllers in a struggle with their union (PATCO) in the early 1980s. (Actually ge gave them notice to return to work immediately or face the loss of their jobs: they stayed out and he fired the whole lot.)
Interestingly the national air traffic control system continued to work well without them. The Navy & Air Force loaned some controllers to the FAA and they, together with FAA supervisors kept the system going without a hitch. After the crisis passed the system was reconstituted using far fewer redundant staff and the service quality, which improved dramatically when the union workers left, remained as good.
In the years before the strike the service quality and attitudes of the air traffic controllers had degraded markedly, all while they and their publicists went about convincing the public that theirs was a job involving extreme stress and anxiety - thus justifying numerous early disability retirements. I recall one dark cloudy night at about 20,000 ft in the very cramped cockpit of an A-4 (a small single seat jet) on a flight back to Oceana VA , I was caught in a thunderstorm with very heavy turbulence and the prospect of icing. No radar in that aircraft and the extensive cloud layer at that altitude prevented visual evasion, so I asked the controller for vectors around the worst storm cells ahead so I could get out of it. "We don't do that any more" was the curt reply. I spent the next few minutes contemplating our relative stress levels. It all came back a few years later when Reagan fired the lot of them. Good riddance.