What if the beginning of this movie was excised entirely?

Begin the film with an opening crawl informing us that the First Order has found the Resistance and chased them across the galaxy, Ren has completed his training with Snoke, and Snoke wants Leia alive in order to find the Last Jedi. Then go to the scene of Rey on the island and imply through those scenes that it is some time before we meet the rest of our heroes again.

You could cut out the Resistance escape and Poe’s hothead moves, Rose’s sister’s sacrifice, Snoke’s first scene with Ren, Finn waking up, Rose meeting Finn, all that. The first scene of the Resistance could be on Canto Bight. It would be assumed that Finn is on some secret mission with another member of the Resistance, and I think they even explain their mission while there (which was unnecessary in the film originally, but would make more sense here). We can assume that Finn and Rose have had a longer-term relationship than what we’ve seen, which might help with the awkward kiss at the end. And we already know that Poe is a hothead, so his first scene is somewhat superfluous anyway.

Is there anything that we simply can’t lose from the beginning of the Resistance plot? I have still only seen this once, so my memory is fuzzy.