Seriously?

Maybe it's me who's the odd one. But the opening sentence to this really, really jars:

There should be a word for the mixed emotions that working parents feel when their children’s teachers go on strike.

Mixed emotions? Seriously? From schools that send you stern letters if you're 5 minutes late dropping your kids off, and write prim little circulars stressing that "every day is important" in a child's education, so no of course you can't go on holiday at a time you could actually afford it, and then fuck off to the donkey jackets and braziers so they can be paid more? There are definitely words for the emotions I feel, but 'mixed' is not one of them.