According to the graph in the PDF, the transmission at 445nm is around 11%. That makes about OD 1. These goggles would pass 100mW of a 1W laser. There's not even a laser safety standard like ANSI 136.1 or EN207 mentioned.
I believe that is approximately what the measured tests showed as well. Not sure where the link is now, but read the results of a measured test which showed roughly 10% (was actually over 10%) get through their goggles.
Measured test measured the S3 at approximately 960mw as I recall (one of the higher ones I've seen). Shine it through the glasses and measuring on the other side showed about 120mw still getting through as I recall. I'll have to see if I can find the actual post with the test results and pics etc... but that sure fits with what we're seeing from their spec sheet.
For those that don't know Wicked Lasers states that you need OD 4.4+ to safely use their laser. They advertised on their website that their safety goggles were OD 5+. The first goggles shipped out were also stamped with a rating of OD5+ directly on the goggle lenses. It appears they have since removed this rating from the goggles and most likely from their website as well. This is very directly a liability issue for them if they claim these goggles are OD5+ and will protect their uses, especially if the lenses themselves are stamped with OD5. If anyone gets harmed by a lasershot in the eye with these goggles that were supposed to "protect" them then Wicked Lasers is absolutely liable. That being said they are a chinese based company so not sure how much you can do other than get them banned for import into the US.