It's not obvious at first, but this idea is actually pretty terrible: changing your mind in presence of evidence is something we want politicians to do, but if you then use that to paint them as hypocrites then they'll never ever change any stated position. And "the opposite" casts a wide net: if someone is recorded as saying "I think we should stop building datacenters for AI" and you then contrast them with an old clip saying they use Google Translate, what does that tell us about the character of this person? (IMO nothing, but that's not what the clip wants to tells you)
You may think you want this because of Sinema and Fetterman but...we already know they're shitheads because...they blatantly do shithead stuff. Replacing the time spent gleaning all the nuance behind a vote with a party whip algorithm is not going to somehow make voters better at voting.