they are meant to look warm and slightly "just threw this on" grunge
Agree completely!
IME the Seasalt coat looks a lot better in real life than in the pics. I have one and, whilst it's never going to be chic, it actually looks pretty good with jeans and trainers / wellies etc. It's great for country walks, dog-walking etc, warm, windproof and waterproof. The big pockets are so handy too.
I wouldn't wear it for a night out, obviously, but for a 'sling on in crappy weather' coat it's the best I've ever had. But I prefer a more relaxed cut in most things and think most belted parkas / raincoats look daft anyway.