The coat dispute is hilarious. I never even knew it was a thing until reading about it here when this thread was made. The scenes outdoors and in the storm make pretty much everything look blue, even the snow is blue. We know snow isn't actually blue, but there's this huge debate about his coat, it's so funny what we get worked up over in this hobby.
The only scene where everyone seems to agree it is blue is inside the Hoth base, not outdoors.
And yeah, the "huge debate" of blue vs. brown has a cyclical nature, and part of that cycle is the "this so absurd" comment.