I really don’t feel like the ruins piece is necessary. It would look cool, but not required.
It’s far enough away that you can’t tell.
I agree with you, it would definitely looks cool, but I hope the Castle shot stays even if it is the way it is in the video you share with us.
Poe being a drugdealer makes no continuity sense and they make a stupid excuse to that after the movie came out, so we could say that maybe the Sith cultists that are protecting the castle rebuilt that and that’s why it looks new and cool. What do you think?