I'm going to guess there is a contract that prohibits non-union workers that could then raise economic grievance liabilities - meaning it IS the union that would not agree to a crisis-waiver. So a BIG FU! to that specific local union office is correct.
And so much for Obama "waiving red tape," as he could merely sign an emergency executive order authorizing the Labor Relations Board to grant and enforce a time-limited crisis-waiver that superceded the labor contract. Since he didn't, it IS Obama's fault.