While true, there's just no way you can infer the opacity from those frame grabs.

On the one hand he says he says he used the whites of Shaq's eyes as a reference and on the other he states that the design of the glasses hugs the users head to block out ambient light getting in from the side.

There's a slew of issues with this derivation. To arrive at a number like 15%, without showing his homework, is as questionable as the marketing claims of Leap themselves.

I'm not saying he's wrong but it does sound like a lot of bias.