Not that I disagree with the patch being rejected, only that this is an example of the compiler's philosophy
Philosophy aside, that is a fine reason to reject the patch unless you can convince the reviewer (and the committee) that you are in the right (you very well may be).
And I think that's ok. Python wants to be simple and straightforward and performance was never a goal.
If you need performance don't use Python, or write a python library in C/C++/Rust and do the heavy lifting there.
Also, just want to also say Python reviewers are great. They're very good at explaining issues with patches & are willing to collaborate on improving a patch when necessary. There's a long list of backlog issues because there is simply not enough review to go around, not because of a lack of quality. Highly recommend CPython to people who want to get involved in contributing to an open source project, even just testing patches helps