Actually the concept makes SOME sense.......I always thought so. One of the most recognizable features of an animal, especially a predator is the straightforward stare........how many times have you been around deer and they don't actually spook until they look at your eyes. I've seen animals that I swear I could see their expression change and just about turn themselves inside out when our eyes finally met. This is the reason old timers will tell you when you have an animal locked up on you or one that you don't intend to shoot (but also don't want to spook) to shut your eyes or not look directly at an animal's face when it's in range. They eyes are very recognizable.
I've used this trick by shielding my eyes with my bow limb and it works.
The camo glasses would be a short range item and might only come into play on an animal that has seen something out of place, but if they are looking up and can't recognize danger?
Ehhhhhhh probably not worth the effort, but I'm sure there's at least that one time in everyone's hunting career that it would work and it might save a hunt.

The product in reality just always seemed a bit "Cheesy".
If they somehow were just as clear to see thru as a clear lens they might have something, but the frosted beer mug analogy isn't very reassuring

Get me an ASAT pair Chuck and I'll field test them for you........Better get started on that mullet. Maybe a sweet 80/20.[:-]