Dr. Young (whose book Irony and Outrage I'm now enjoying) is talking about why the president's audiences love it when he rambles about toilets needing 15 flushes etc. To a lesser extent, she could also be talking about how "zingers" determine "winners" in primary and presidential debates on both sides.
But unintentionally this tweet illustrates how Congressional Debate is a microcosm of the current moment.
For at least the decade before 2016, it was also a terrible harbinger. I remember hearing how debaters who needed bill ideas would literally just go to the ALEC database!