Your case makes no sense...Have you ever had someone fall through the ice? Typically if they are close enough you throw them a rope...This set up allows you to get a rope to a person at a distance where throwing accurately would be impossible. Yep, I’m so sure he is going to tow a rope out, drop it, and just watch. If it’s a rescue situation you better believe he and or other people will be on the other end of that rope. Not quite sure how the Mavic is going to end up in the water, drop the rope, hit the RTH button, toss the remote aside, and pull the other end of the rope. Mavic flies home on its own. Rescuers stay off the ice and safe. Not really a difficult concept to understand.