I tend to take a legal eye when I look that this (IANAL).
An NMAP scan of a target will always be active regardless of who performs the scan. Just because you shift the scanning responsibility to a third party doesn't change that fact.
You might be able to argue that you retrieved the scan data passively, but I would argue otherwise based on the post. From a legal stand point, it doesn't matter if you proxy the attack, if the attack as illegal it would just add another defendant. Would you consider C&C agents for something like a DDOS attack as passive? I sure as hell wouldn't.
It would however be different if you came across scan data on a third party site. You would have to prove that you didn't initiate the attack. From a legal perspective, you simply possessing scan data that was widely available (arguable), damning or not, would be different.