If article made any mention of how many times that gun was fired until it failed, I missed it.
What I find more disconcerting is the continue emphasis on how the gun is "undetectable". While it is certainly harder to detect because of the small number of metal pieces, you still have the ability to detect bullets!! Or are they so focused on the gun itself that they haven't kept up technology to detect gun powder?
As others have mentioned.. its all about drumming up noise to defend their removal of this information from the Internet.
Anecdote: I went to traffic court years ago, and after exiting the courthouse stuck my hand in my pocket and realized I had forgotten to remove a handful of .22 LR cartridges. They did not activate the detector.
One concern being presented here is that the gun could shatter on failure, making it "Fail Dangerous".