The issue is what you do on a phone, not the phone itself.
In fact, phones make it a lot easier to create and not just consume, than televisions did back in the author's youth. And I bet there were similar anti-TV op-eds in newspapers in those days that the author would have rolled his eyes at.
The message should've been to create more and consume less. A phone let's you do either, the device is hardly related at all. You can't see what a person is doing when they're bent over their phone.