Several issues though:
The risk is far from linear. Infrequent pilots have much higher risk per hour.
The number of hours for part 91 (most private flying) flights cannot be reliably determined.
About 75% to 95% of risk is under the control or strong influence of the pilot. Weather, fuel, crew readiness, pre-flight planning and related issues are much more under pilot control (if you're willing to cancel or delay flights) than in comparable car trips. It's extremely rare for another pilot to kill you.
I came up with 9% if you assume two fatals per accident.
Light sport is restricted to day VFR, which is lower risk, other things being equal. Unfortunately, that also saps some utility and pushes you towards taking a late day flight rather than waiting for better night weather. I don't think LSA is viable for transportation, which makes it all the more unusual for someone to fly 300 hours per year.
(Context: I fly about 150-200 hours per year, which is 80+% of our vacation travel. I also read every NTSB fatal report.)