He’s probably right, but that apostrophe in the headline is just wrong to the point of distraction. Who teaches this crap, why does anybody think that’s correct? It’s not correct. Here’s a suggestion, just stop using apostrophes if you don’t know how to use them. They’re not used for pluralization, ever. They’re not used for abbreviation or hyphenization, either.
One of my pet peeves. These intellectuals think by adding an appostrophe they’re making something plural; when what they’re really doing is making it singular possessive.