I for one think it’s a bad idea for her parents to spend any time on Exegol. Baby Rey needs to come from there, sure. But it stops them from being junk traders and nobodies at heart. Plus, we know how dangerous and complicated it is to travel to and from there. Which is why in my previous post they would basically return to their boring lives after receiving Rey.
I think giving her parents character motivations is important for all of it to make sense narratively. Just spouting out everything that happens without answering “why?” is a recipe for trouble.