Perl is a massive toolbox that you can use to solve a vast array of problems. But for any particular problem only a modest selection of the tools are likely to be used. Most people end up using only the tools on the top two trays of the toolbox and from time to time use the wrong tool for the job - you can drive screws with a hammer, but the result tends to be nasty, and you can drive nails with a screwdriver, but it's slow and hard work (and you're more likely to hit your thumb).

OO tends to either be down on the third shelf and probably not even noticed, or up on the top shelf and used all the time (I'm a top shelf person). There is plenty of other stuff buried down among the bent nails and mashed headed screws in the bottom of the toolbox that almost no-one finds, and occasionally they are exactly the right tool to solve a tricky problem.

At the end of the day all that really means is that Perl is a very rich language and TIMTOWTDI.