Is it possible to add a symlink from /usr/local/bin/perl to /usr/bin/perl for compatability? (Ok, you have lots of better things to do with your time but it would be nice.) Unfortunetly some scripts have #!/usr/local/bin/perl as a she-bang line. Spend time on security fixes (when applicable) before worrying about this 'bug'.
This bug probably shouldn't be fixed - as it would introduce RPM's package management into /usr/local - where it doesn't belong. Marking it 'WONTFIX'