Objectivity in reporting is a nice goal when you're trying to write objective journalism. But this dude clearly wrote an opinion piece. It literally says "you shouldn't" in the headline. That sort of thing can't be objective, and it would look embarrassing if it tried. Objectivity for objectivity's sake regardless of context is not really sensible. What you're asking for is a fact sheet, not something written by a person because that person believes a thing.

That being said, I'll give it to you: it wasn't an especially good op-ed piece. It would've been better if he elaborated some of the stuff he said. But that just means he's got some work to do as a writer, not that his crime was 'not being objective enough'.