All Thiess would have had to do was put some fake fur trim on them, and we likely would have realized they were cold weather suits. But when the costumes are apparently shower curtain originals (much like the Elasian guards' placemat "armor" costumes), most of the money was probably spent on spray foam "ice" for the planet set.
That, and a significantly large cast of extras with speaking parts.
That's another thing I hadn't really thought of too much.....
If the heat is turned off in the outpost---would that cause the thick 'ice' to form over everything?
I know they were trying to give the imprssion of cold, but could that actually happen or was it just another goof up--like the obvious manaquin used as a woman.
And yes it looked like a mannequin to me on my old small TV set.