I think Palpatine’s return is handled drastically better in this edit just with the two changes that have been made.

First, we see a tank of Palpatine clones, rather than Snokes. Far more useful and relevant information is now being implied with this shot. Palpatine already says “I made Snoke,” and it frankly doesn’t matter whether that’s metaphorical or literal, because all we really need to know about Snoke now is that Palpatine put him into power.

Then, Palpatine’s line about his spirit jumping bodies is now moved to his first conversation with Kylo (as a defense for Kylo not to kill him), rather than its original placement at the end of the movie with Rey.

These two bits of information together in quick succession, Palpatine clones and possession, should be enough for the audience to assume the canon fact of Palpatine’s return: that this is a clone body inhabited by his spirit after he died in RotJ.

And if the audience doesn’t quite put it together on their own, Merry Brandybuck still has his “dark science, cloning, secrets only the Sith knew” line in the Ajan Kloss meeting. Originally (and still kinda now tbh) this line was just ridiculous, but now it can help the audience put 2 & 2 together in their head given the information they acquired in the Exegol scene.