As I said, the rest of the page is about walking or running on surfaces that shouldn't be possible to stand on, with the other applications, the description, the image and the examples all being this. We can interpret the Snow Walking part itself three ways.
Option 1: Standing on top of snow one would normally sink in.
Option 2: Getting through a giant wall of snow through whatever means, even though this isn't really snow walking so much as getting through it.
Option 3: Anyone that can travel easily in snow. This would include almost anything at athletic level or higher.
The rest of the page is about walking on water and clouds and lists this as part of the same thing, so Option 1 definitely seems to be the correct one. But yes, the mere fact that the wording can be interpreted in three vastly different ways to the point we need to interpret it based on what's said around it tells us it needs to be looked at.