You're not getting rid of sdists are you?
Please note that without source distributions (preferably .tar.gz) your
package will never get distributed on a Linux distro.
Maybe the keyword here is "traditional" though. In that case, keep in mind
that at least in Debian and its derivatives, we have a lot of tools that make
it pretty trivial to package something setup.py based from PyPI. If/when that
goes away, it will be more difficult to get new package updates, until the
distro's supporting tools catch up.