Thanks to the existence of this thread, they may be able to safely claim the product has indeed been featured on this site..
But seriously, who are they kidding with that collection of 'featured in' logos? Hydraulic Press Channel? They wouldn't review it, just crush it to a pancake! Petapixel and dpreview? Perhaps it takes photos of the inside of your mouth as well...
...which makes me think HPC has crushed one already (didn't check), and maybe the other sites are forums that also have someone started a thread on it? "Featured in" is a pretty vague phrase after all, and just by virtue of having appeared in discussion on the site, is sort of a self-fulfilling prophecy...
That said, I can't believe how anyone with even the slightest bit of common sense could think something like this would even work. Biting a piece of silicone attached to a vibrator is not going to clean your teeth much if at all; and there's a reason why people use floss and toothbrushes with fine bristles.
Not to mention those pictures of an adult holding a giant dummy in his or her mouth like an idiotic gigantic baby looks, well, idiotic.