Dom, quite possibly, but why didn’t they include Zuvio’s scene on the Blu Ray? One possible and legitimate reason to exclude it might have been because it had been partly repurposed for the vision scene?
Well there was a lot of deleted stuff that wasn’t included, who knows why. Maybe because it was too short, too long, unfinished, part of a subplot that was dropped, no idea. I sincerely doubt it was repurposed for the vision scene for a LOT of reasons, the most obvious being that the guy in the vision looks nothing like Zuvio, beyond a vaguely similar hat.
I’d be interested to hear, what is your interpretation of the Kylo massacre snippets we see?
I think it’s just a random massacre to show the menace of Kylo Ren/the dark side (perhaps their first mission once they joined Snoke). I think it’s entirely possible that it was originally intended to show the massacre of Luke’s students, but that’s obviously no longer the case.