The same people who look after Python in Ubuntu also look after Python in Debian (as part of a wider team) and also are active upstream in Python in making Pyth

The same people who look after Python in Ubuntu also look after Python in Debian (as part of a wider team) and also are active upstream in Python in making Python work well across all distributions. Ubuntu is hardly on its own here. I recommend that anyone who disagrees with how Python is packaged on Debian and Ubuntu get in touch on the relevant mailing lists. If you think it's wrong, there's probably a use case you're missing, or you'll find that your proposal will badly break some other expected behaviour.