There is one issue not mentioned in the article: authors of "old" tech quite often abandon it while developing a fancy new version, so the choice is not the ima

There is one issue not mentioned in the article: authors of "old" tech quite often abandon it while developing a fancy new version, so the choice is not the imaginary one between old and new, the choice is real between abandoned and not-yet-ready. Abandonment would not be a problem in a stable environment (see, Clojure libraries last touched in 2014 don't need any maintenance, and old Go libraries usually need just a bit of touch-up), but in a chaotic environment of most other languages abandoned library bitrots immediately.