Interesting. Watch the video again and listen to the voice. It's synthetic. Why? What message is this trying to send and what is the origin?
No problem with the rear fins, they are that way for a reason - to give sufficent surface area to stabilize the munition whilst being able to be folded flat against the body for carriage.
20 is a very specific number to buy. Most munitins are bought in 1000s unless for a specific task - obviously, before you tell me that.
Pause for thought.