I'm not sure but I think he's trying to get people to stop using sayings that rhyme. Ground and pound is used a lot, but you know exactly what someone means when they say ground and pound. For a play by play guy, it's easier to say ground and pound then "throwing opportune punches from an advantageous position on the mat" or "striking from a dominant ground grappling position to a fighter who attempting to avoid damage"
On the other hand, I do hate hearing "punches in bunches" just because rarely are many of those punches actually landing.
The Jets have won more Superbowls than you have.