* Perl has one of the most featureful object systems in existence *
That's an overstatement. Perl is in no way actually object-oriented. It's a feature that's tacked on, but it doesn't help you write better code. If you think Perl's object architecture is featureful, take a look at Ruby. It'll blow you away.
I may be wrong, but I think he's talking about Moose, not Perl's native OO style/system. (Though I suppose you could also argue that the native system is pretty nice too, if it allows you to create Moose on top of it.)
That's an overstatement. Perl is in no way actually object-oriented. It's a feature that's tacked on, but it doesn't help you write better code. If you think Perl's object architecture is featureful, take a look at Ruby. It'll blow you away.