Good points (I wrote the article in question).
I'd like to put this out there -- I am talking to people on the business end of things a lot more than the technical talent (I've been on both sides).
Also, I am responding to the video that was embedded that implies that the sky is falling and everyone is going to be out of a job soon enough. I've always been opposed to that sentiment because it ignores what you so elegantly put at the end of your comment -- people doing good stuff (from both a technical and a business perspective) will continue to do well.
As for "digital marketing expert," ugh . . . I think it follows the same line, us "experts" will need to relax or panic as quality dictates.