Good ol' statistics. Use what you want, ignore the rest, and call it incontrovertible proof. This writer, and many more, are saying to themselves: "Most people won't bother to check my 'facts' anyway, and the ones that do don't have a national media forum to present a refutation, so who cares if I'm dead wrong?", and a self serving idiot (my addition).
According to the HURT report, and backed up by the European MAIDS study, over 66% of fatal motorcycle accidents (69% in the MAIDS study) were directly caused by car drivers failing to see the motorcyclist. We're still dead, and there are rarely any substantial penalties for such inattention. It would seem that this is a more telling statistic than anything he quoted, and to address this and the actual motorcycle and car fatality numbers (4,008 vs 35,691 in 2004) and you could save considerably more lives with one simple act -- ban cars. The 35,000 and change lives saved will be slightly offset by increases in public transportation and common carrier deaths, but given the statistically greater safety of both of those compared to cars as many as 31,000 lives will be saved. On the motorcycle side of the equation things would improve as well, cutting fatalities by a whopping 2,700+ riders / passengers.
Of course we will always have the drunk undertrained inattentive overconfident riders killing themselves, and the innumerable ex car drivers who switch to motorcycles and off themselves as well, so the motorcycle stats would take an alarming turn starting some 6 months after the car ban is enacted. Two years later there will be a huge brouhaha about the numbers, but it will die away when the person doing the most shouting about "the disturbing statistics showing ... " dies in a bathtub fall (Those monsters should have been banned centuries ago!") and the voice is considerably quieted. Besides, nobody bothers to check the numbers anyway (this or any other time) so it all blows over.
Ignore him. All he's doing is trying to increase his flagging reader / viewer numbers with free ink and sensationalism. Any other action taken gives him what he wants. A fatter paycheck.
Oh, this guy is about as liberal as Dubya.
Rob