Is this a 'lockout'? It sure looks like it, very tried and true union bust tactic.
I don't think the economic survival of the company has anything to do with rostering or FTLs. It usually has to do with debt financing and management techniques. Pilots payrolls rarely make up enough of the operational costs to have that much effect on the bottom line.
The management is on an obvious union bust. It is a power grab and nothing else.
Good luck Gents.