that's what I said "swinging back and forth". and no luffy didn't need a check up, oda simply used them as commentators which again wasn't really that important or needed. Kaido could've been a commentator but oda still used these too. Momo was pulling the island since last year, then the stopped doing it, and now he's going back to be busy with it again. Idk to me it just drags the arc even more.