I'm trying to rack my brain as to why Cure Idol goes red, but I got nothing. Next 2 episodes will be memorable one way or another.
I will say that Meroron has arguably been the main focus of the season since episode 15 if not episode 12, so switching the main focus back to Uta makes some sense, like how the cat duo dominated the middle part of Wonderful whereas the beginning and the last cour of the season put more focus on the dog duo. Still... yeah, can't really imagine all that well what the last 20 episodes of You and Idol Precure will be like. I don't think it'll be all that similar to the first cour, even if the focus goes back to Uta.