And finally we now have the next news story to the one you submitted:
http://www.wptv.com/news/local/story...3-b0dd76f2cebc
Basically it reveals that without proper electronics, people could end up blowing fuses, and that the gas mileage improvement in this particular electrolyzer was marginal -- going from 11mpg to 18mpg in one vehicle, more in others, etc. My gut feeling is that the unit looks pretty, but probably lacks the proper electronics to be sufficient and may even eventually melt wiring. It probably doesn't even have a PWM. It also only used distilled water and I really think it needs lye or potash added to that water to be sufficient. Otherwise, all you're doing is boiling water and not getting enough HHO.
So, the story and the analysis isn't wrong -- it's the brand of device that is in this case.