In the book, Wynn-Williams described herself as a wide-eyed, almost helpless person, which doesn't align with her pre-Facebook career as a lawyer in the a diplomatic corps. And when at FB, she was in the rooms where it happened, and had a job enabling some of it. She could've quit, but did not.
She was one of the titular careless people at the time, and excuses it now by pointing at others who were even more careless. It's not atonement, it's whitewashing.
If you write all the code you deal with, then sure. My experiences on big projects tend to be typing problems introduced by libraries. The kind where documentation and the decorators suggest it'll only ever return some specific value type, but then very occasionally it'll return a tuple of that value type and a message.
I don't know, this just seems more like inertia. "I'd rather stick to what I know best than this popular thing." Which is fine, and I'm glad Java has made improvements making it easier to hit the ground running. But blaming the use of Java on the inadequacies of Python? The python API can do just about anything, it has regex toolings, I've never found myself needing anything else. And the typing complaints? Yeah it can be annoying if you're not good at keeping track of your own typing hints, but modern python supports type annotations and linters like mypy[1] catch everything related to that just fine. I've always admired many of Java's features, but let's not act like the reason for using Java for scripting is the pitfalls of Python. It's just because of an underlying preference for Java.
[1] https://pep-previews--4124.org.readthedocs.build/pep-0750/
[2] https://htpy.dev
Betting in advance that it's JavaScript or Python, probably with very mainstream libraries or frameworks.