It's stated in the article that it's been tried. One biz owner stated there was a $100 bonus in it for anyone who manages to rack up a hundred hours. I don't know how you were as a teenager but when I was a teen $100 wasn't living it large, but it was definitely motivating. Plenty say they offer above-industry wages, so obviously that won't fix the problem by itself.
I believe what's being asked for is an order of magnitude adjustment, and that would significantly change the economics of the industry. I'll hazard a guess and say that nobody's going to really like the quick-service restaurants that manage to turn a profit in this brave new world.
Then again, I've never seen a Chick-Fil-A understaffed. I'd love to see that become the new normal. Demolition Man got it wrong.