There is a reason for this specific version of Pulp - one of the bugs we fixed involved creating pulp_rpm migration 0006. That migration can create orphans, so the orphan removal step will help to cleanup afterwards. I don't intend for us to include the orphan removal in each release.

Also, I think I did put the orphan removal step into the upgrade instructions for the Puppet plugins, which isn't necessary. If you like, I can remove that.