For unmanned for cargo delivery it makes a lot of sense and could be revolutionary. But putting a man on it doesn't make so much sense; whoever was standing o

For unmanned for cargo delivery it makes a lot of sense and could be revolutionary. But putting a man on it doesn't make so much sense; whoever was standing on top would be a very noisy obvious target and even if that weren't the case the case, the system would probably create a ton of casualties anyway just from people getting too excited and crashing it.