It makes the Light Side/Dark Side dichotomy more apparent, true - that would be a big step up from the J.J. version. But it still doesn’t quite explain why Palpy would order her to be killed when that would ruin his entire plan.
Don’t want to get back into that argument again lol. I just explained his plan, so I will just summarize the answer to your question. Rey was his Plan B to transfer his essence into if Kylo didn’t commit himself fully to the dark side. The test to see if he would go to the dark side is if he killed Rey. Make sense?
EDIT: Realized you might be talking about him backing his crane out and having his guards attack her. In that case, he was concerned that her intentions in killing him truly were pure and Jedi-like, which would result in his actual death.