I can’t help but read it as Rey accidentally killing her parents, similar to what happens with Chewie. She’s frightened, calls out, “Come back! No!”

I guess Unklar Plutt would have just reacted with, “Holy hell! I’m not keeping you where I live. Good luck bringing me shit in exchange for food.”
Unrelated to these events or Rey’s parents per se (since they have no prior connection), Palpatine senses Rey as a powerful person and wants to either put a proactive end to her or bring her to him. Either way, Ochi is sent to find her but ends up dying from a snake because he’s a dumbass. He doesn’t end up killing anyone or anything, just stopping to take a piss and getting killed.

This keeps getting more complicated. Ochi’s ship shouldn’t still exist or look like it does, if Rey destroyed it as her parents tried to leave. If the ship is replaced in TFA’s flashback (and its appearances in TROS), she shouldn’t recognize Ochi’s ship or get a feeling about it.