This is a focus-group of undecided voters – a small population set to begin with and a sample set designed to be small, but who will clearly decide this election on the margins. You do understand how focus groups work and quite literally all campaigns use these, correct?
And finally, little data is better than no data. Nobody came away from the debate thinking Biden won; so it’s not particularly a stretch to see this would hurt him with critical battleground state undecided voters.
Edit: Whew, talk about vote manipulation. I’m astounded by the complete and utter lack of substantive rebuttal.