Shopping for winter jacket and a rant on the poor design of said jackets

Went shopping for a new winter jacket now that everything is on sale. Found a lovely coat that turned out to be far too expensive even at half price. Then found a beautiful red jacket in the model I like with lots of pockets in the configuration I like. It was like someone had listed everything I want in a jacket and then made it. ONE SIZE TOO SMALL. I am not happy.

Why do they make jackets with super small sleeves. I mean the one I'm using now is a small, it's modified, but not in the sleeves which fit just fine. Still when trying jackets 90% fit except for having too narrow sleeves, and I'm trying on L, XL and similar sizes. What do they expect people to be fat everywhere EXCEPT their arms? Are they designing for snowmen? Who has a round torso with thin arms? Clothes manufacturers and designers are morons.