Caveat: the article is anecdotal, so be careful.
Some laws of '"programming gravity"
1. Critical legacy systems
2. Performance
3. Reliability and robustness.
This is a KO for Python. Reality is setting in.
Example: Baruch college (and other top 5) have C++ as prerequisite. Baruch is consistently top 1-2 in the Rotman high speed competition.
https://quantnet.com/courses/