I don't even notice the knees in person when properly displayed - not that they aren't there, but it's blown way out of proportion by people. Don't let that deter you from an otherwise awesome figure.
I agree they aren't nearly as bad as some make out but it was still a strange decision on HT part. They offer almost no articulation.
They may as well have gone the whole way and made her legs entirely seamless or just left the original prototype joint that seemed to offer more articulation.