While I agree, I’m mostly thinking ahead to the end of the movie. As it stands, there needs to be at least some reason why Palpatine is able to fully restore himself. If Palpatine can just suck off (poorly worded, I know) anybody he wants to then he would have returned to full strength much sooner. It’s only the dyad that is able to grant him the good life juice.
And yes, I love the whole twisted science aspect of all this. It slots Rey as a character right in with two of the big bads of the trilogy. Palpatine’s baby purge also kinda reminds me of King Herod killing all the baby boys to stop Jesus. Fitting analogy for the season right now, I suppose.