He's giving us the answer we all want to hear; what we appeal to. Reality of course is the opposite, and manufactured drama attracts a lot better than education, for example.
The article's argument is something like if people wanted to learn something they'd go to wikipedia or stack exchange, but they don't, they want to read (manufactured) drama. So twitter makes money off them. It would be a much harder sell for twitter to move into SE or wikipedia's turf, so they don't and shouldn't if they want to make money.