I agree. I made an error with that changelog, actually. I meant to say he was waiting to commune with Vader’s mask until he has destroyed the Resistance. But after Palp’s revelation he makes an exception.
You’re correct that he is more confident now that he is certain he will be able to get Rey to join him and kill Palpatine. That’s why he restores the mask. I believe I accomplished this implication in the chapter.
Sorry for the confusion.