Naive? not really. More unfortunate that he had an accident.
You'll be surprised how many of the other drivers have jobs and contracts outside racing, that also put them at risk of injury before a race weekend. Some are test drivers and many are circuit instructors.
Darren for example is a GT LeMans ALMS driver in between his commitments to SEAT. He could quite of easily had a race accident at any point this season. That could of also ruled him out of driving.
Accidents happen, at any time and without warning, thats why they are accidents. He could just of easily injured himself at home, or injured himself driving to the circuit. Granted he should probably have been wearing his race suit last week, but the Caparo is supposed to be a road-legal car, not something you expect to flambe you when you give it some beans!!
However what he does as a job outside of his racing has little bearing on the results on Sunday. JP drove the wheels off that car all weekend in a heavily ballast laden car. The Leon has struggled for straight line pace all year, that was plain to see, underpowered and a largely undeveloped engine hasn't really helped that situation.
Even if he was uninjured and the last race had been more fairly fought, I still fear the results would of been the same, VX have just had the measure of the field in the second half of the year.
A lot of what if's, but the 2007 season is over now, so they need to work hard over the winter. Come back in 2008 with hopefully a new developed car and take the fight to VX.