It's been a while since I read the pair regs...but...AFAIR
When turning, it is a bad thing if the guy is kicking up significant amounts of snow. So a nice edge rather than skating on flats is better, but not a specific requirement or a feature. It's a GOE issue.
If he's on one foot doing a long carry, or in a spread eagle doing a carry, etc, those would be features. Depending on other features, they might get an extra level for them.