Nobody means change the UI. What people mean is just fix the BUGS in it
The trouble with NKP is that it is just full of bugs that CTD. During my hour test I even needed to do a complete reboot because after one CTD while running a lap NKP refused to start again until a rebooted.
This is what people mean by polish. Does not matter WHAT the UI looks like, it just has to work. As I said in RSC, to fix the UI CTDs would take any dev with good attention to detail far less than a week. The stupid UI bugs just make NKP look sloppy