I see a couple of advantages, if you're a multipal stick + aider guy:
1. I would assume the aider doesnt blow in wind and has a more natural look to it
2. You dont have to spin, twist, untangle or pull an aider out of your bag. Just pull it out of the bottom, even after the stick is mounted
3. The coated aider coupled with the carbon is gonna be either quiter or at least not metal on metal sounding.
4. Considering its a round small diameter cable, I think it being closer to the tree is advantageous. Its going to "pull" your foot into the tree, albeit slightly, and find the center of your foot much easier than a webbing aider.