About how Starks are "supposed" to fit: if they're made in Denmark, an area of the world where people are generally taller, then the bottom of the cardigan is probably going to be just below their belt, right?
So if people that aren't as tall as the Danish are wearing the Starks so that it falls to their crotch, then that's pretty much not how it's intended to be worn. So I don't think that this change in length is really such bad thing, it's just getting the fit closer to what it should be for people that aren't very tall.
I just got my Paragon Shawl Neck from TBS and it's not for me. It's an amazing sweater but it doesn't work for me so I'm going to return it. If anyone in the USA wants it for $350 shipped let me know. It's an XL in Black Melange.