No offense, but that actually isn’t the issue we’re currently having. We’re trying to figure out if it’s worth talking about what happens to her parents if they are indeed bad. I personally think we have to because of Rey’s scene with Finn immediately after all these reveals. Plus, if we kept “Weak, like your parents” that implies some sort of familiarity Palps has with them and their antics.
I do agree that the other idea makes more sense in terms of where the conversation was leading and also what makes sense for Palpatine himself to do. Granted, there’s no reason he couldn’t get impatient and want to find Rey and her parents before she taps into the dark side.