The same video production company is being used all over for startups like this. It does not imply any relationship to coin or any others. http://sandwichvideo.com/

Yes but since the products of Coin and Final are so similar, surely the confusion is understandable.

The first time I saw the video, I certainly wondered if Final was either a follow-on product or pivot from the makers of Coin.

Same. I was like "Oh cool, Coin is making something even better." Oh.

This was also my first thought.

"Oh the guys at coin pivoted to this, awesome!"