In Beta 9 you get points for exploration of new maps, which is easier to do as flight, but technically flight makes it easier to get high scores in a number of ways, you just need to be more strategic about it. Have you checked out the leaderboards? The top score right now is a flight build
But points generally don't come from "running away," because running away is pretty easy in Cogmind. You get points for doing challenging things, and causing trouble (which in turn creates more challenges!).
If you want to get specific about it, the idea of evading enemies comes into play for
all builds, because there are always going to be confrontations you'd prefer to avoid, but when and where they occur, and how frequent these situations are, varies from build to build, and map to map.
