The point is that the standard perl RPM does not contain everything that you would expect to see in a Perl installation. And whilst I agree that it is simple enough to fix that situation, many people running low-end web hosting services don't realise that the standard Perl installation is stripped back and don't do anything to rectify this - as demonstrated by the example in my article.
I really don't mind Red Hat providing a standard stripped-down Perl RPM. I just wish they had called it "perl-minimal" or something like that, saving the name "perl" for the full Perl RPM.