Causation does not imply correlation.
That there are non-technical leaders who lose the thread does not mean that leaders lose the thread because they're non-technical.
There are plenty of technical leaders who have also gone off on personal tangents and vendettas!
Maybe a more accurate appraisal would be 'some people suck at a job, and it's unfortunately difficult to dislodge a bad leader anywhere'.
That might explain why the Scala Center (which oversees the Scala language) has a young political sciences grad as its executive director. She has zero commercial or academic experience in Scala.
And this is how she behaves at conferences:
https://x.com/jdegoes/status/1633888998434193411
Leftwing political activism, cancel culture and #metoo-style witchhunts (example: https://pretty.direct/statement )
This is what the Scala "community" has become. It's tragic, given how good the language is.