Isn’t it a perfectly understandable reason? We regularly pan C++ on here for its smorgasbord of implementation options for any given thing, and the complexity, customization, and fragility of a C++ code base always seems to be high especially for non experts in the domain.
So, accordingly, people who know how to maintain code in a simpler and more flexible setup and can still convert to C++ for performance are taking a probable performance hit relative to “native” C++ (whatever that is in 2021), in order to maintain their tool with more ease.
It’s very silly you move to slandering python developers and not contemplating the trade offs meaningfully