This is really cool and innovative thinking, but anything aerodynamic does not scale linearly. It's really easy to make something light fall slowly. Baby spiders use "ballooning" -- a single thread -- to fall so slowly that they can travel far in thermal updrafts.
What's missing here is any evidence that the same cool parachutes will work on anything of significant mass, e.g. a parcel weighing 2kg or an average human weighing 80kg.
What's missing here is any evidence that the same cool parachutes will work on anything of significant mass, e.g. a parcel weighing 2kg or an average human weighing 80kg.