I haven’t yet watched this, but I’ve been looking over the changelog.

I can’t quite visualise this one from Visions:

Change the Starkiller Firing sequence and Oscillator destruction so that Poe’s final bombing run doesn’t destroy the Oscillator. Instead, the weapon fires at the end of Rey’s and Kylo’s battle and the force of the weapon completes the Oscillator destruction.

What’s the motivation behind this change, and why it’s only in Visions as opposed to Starlight core?

And presumably the other two changes in Visions, where Rey only dreams of Luke rather than visits him, are so that a theoretical TLJ edit can imply more time has passed on Ach-To for Rey’s training?