The only way for bad parents to work would be if Ochi never caught her parents. Furthermore, it might be a good idea in that case for Rey to be the one who killed them with her Palpy lightning ala Chewbacca shuttle.
It’s something I could consider for a v2 of my TROS project, but I haven’t made up my mind yet. There are further implications with it, such as the fact that the ship means nothing to Rey now, and the dagger wasn’t her parents’ murder weapon.