While I can buy the idea that someone would knock off these products and I wouldn't want to be worried about it while hanging on the side of an endless fall, these kinds of warnings always sound like propaganda designed to drive the price up among retailers competing against a couple places that are under pricing them.
I've seen warnings on the sides of over priced shampoo bottles claiming the product might not be real if its not from an authorized retailer. Oh bull. They just need a justification for charging too much at some fancy pants salon when someone is selling the over priced snake oil for less on Ebay.
Be safe, be sure, but also, be realistic. Until I see unfortunate reports of climbers falling from fake gear I'm inclined to take this warning with a huge grain of salt. To be sure if I noticed one of my anchors I found on sale looked different from the others I'd replace it after reading this, but I really doubt this is what it appears to be.
Why does it seem 98% of the news these days is corporate sponsored talking heads telling us what we need to be afraid of.