Wow, a strike in Austria!? Could easily be the only one in my lifetime.
It's not the moment for asking for a salary increase.
It's never "the moment" if you ask the employers and their apologists.
In recession, it is not "the moment" because well, it is recession. When economy is grwoing a little, it is not the moment because higher wages would starve the growth.
During boom times, it is not the moment because business has to recover from the precedent recession. Etc...
In fact, employees need to fight for as much as they can get, at any time.