I don't see anyone defending JavaScript. In fact a whole lot of people are using typescript now because JavaScript is just so bad.
As for python, that's a good point. I guess it's just because it's easy to use and all the numerical stuff is done with c-bindings anyway?
But the C++ Situation is genuinely different. There's a reason governments are now calling upon developers to just let it die already[0]. That design flaw is so bad it's causing genuine harm.
[0] https://www.cisa.gov/news-events/news/urgent-need-memory-saf...