The Spanish goverment has clearly handled this poorly, not doubt about that.
Smells of banana republic style justice all the way.
But: Someone asked for and got the salaries you guys have enjoyed over the last years. (The same union that has refused to inform IFATCA about the level of pay in Spain repeatedly perhaps?)
Hate to break it to you guys, but understaffing is a problem all over Europe, but no one has managed to squeeze that much cash from their ANSP.
You had a VERY sweet deal....sad that the goverment could not find a more civilized way to sort out the situation.