Of the three points of the article, the last two (10 years major shift, ; shift creates leveling playing field) I disagree with.
I have seen some things that felt like major shifts, but once under the hood, they tend to be re-shaping and combining existing technologies. This often put me ahead of new-comers. I had not only the current technology, but I also understood the underlying historical technology.
There is no such thing as "irrelevant experience" in my opinion. For example - it is unlikely that Algol, SNOBOL or Fortan will make a new revival. But, all that experience gave me the edge to be able to recognize short-comings or advantages of newer programming languages.
So thanks for all the nice words here. It's time for me to swap my tapes in my PDP.