I installed python-pip package via yum (using Fedora\'s updates repo). It does not add the pip script to my PATH though.
It is probably to avoid a conflict with another package that has an executable called pip. As long as you don't install that package, you should be safe.
Another annoying example of this is the chromium browser, which my distro's executable is chromium-browser to avoid a conflict with some game I had never heard of until I did an: apt-get install chromium.