There's an optional rule when using the Matrix that you can use Attributes+skill and successes get limited by the software-level. As a GM I want to use that for streamlining the rules.
When someone wants to remote-control a drone, there's only Command+skill (thus software+skill) but here I do not want to move away from the optional rule as well. Which attribute would be the fitting one? I don't see why one would use Agility+Gunnery when attacking with a remote-controlled drone. So what would fit? Logic? Intuition?
On a sidenote: There's even command+longarms mentioned when a remote controlled drone fires a rifle. Isn't always gunnery used with drones and guns?