Hi guys. First of all apologies for posting this here and not under the video I'm referring to. My subscription ended today and I didn't get around to asking the question. (I do plan to renew in the near future)

In the video referenced in my title, Peter says that he raises polar on the flop, this confused me a bit as that means we are raising polar vs a Merged range bet. In From The Ground Up he explicitly stated we react to to merged cbets with a merged raising range; and vs a polar cbet with a polarized raising range. Was this just a verbal mistake in the video? or was what he said correct and done by solvers? If it is correct then can anyone explain the logic behind it?

Thank You