They're not totally colorblind. These glasses help people with protanomoly (less sensitive to red light)or deuteranomaly (less sensitive to green light). I have protanomoly. This doesn't mean they can't see red or green, but they may have trouble distinguishing colors with a strong green or red component. For instance, I have trouble telling blue and purple apart because the main difference between them is the red component. But I can still easily tell a strong blue apart from a really bright red purple.

So what these guys are seeing are a few more of those "in-between" shades that they've been missing for a while. Cool, yes, but a far cry from seeing no colour to seeing colour, and it kinda makes me skeptical that this isn't some viral video for the product with their uber dramatic reactions, and shit like "that's ORANGE!". I know what orange looks like. If it's a dark enough orange, it'll look a hell of a lot like red, but I wouldn't be blown away by some completely new colour that defies all imagination.