You are focusing on the wrong question. That is the worst-case scenario of what is likely a design flaw. Recalls don't happen because a motorcycle burns to the ground in a gas station accident (but they certainly draw attention to the issue), they happen because there is a design flaw which could potentially lead to burning down while refueling. Look at the Ford Pinto, terribly designed where they could rupture the fuel tank and burst into flame in the event of a rear-end collision. Ford had to recall 1.5 million vehicles due to this design defect. Now think what small % of Ford Pinto drivers would be rear