Discs run away from the mouse

The instructions for CodeFlower say you can click on a directory to collapse it, but the directory dots "run away" from the mouse cursor. The only way to click on a directory node (which is roughly 1 pixel wide) is to "sneak up on it" and click before the animation can move it away. Doing so is nearly impossible, requiring dozens of attempts to nail down the slippery dot. It makes a good dexterity game but a frustrating interface.

I thought maybe this "run away" behavior was a feature, but I cannot think of any reason it would ever be useful.