That’s a fair point, but what good will control do if you’re a Sith and you’ve made an enemy out of everyone you cared about?
That’s what I keep coming back to. The audience knows that Rey will never join the Dark Side, just as they knew that Luke wouldn’t join the Dark Side in ROTJ. The Rise of Skywalker apes that ROTJ scene to such an extent that it inherits all of that scene’s problems, without any of the iconic aspects.