Why its limited debut matters to the industry and drivers.
As you say int eh article, it has done nothing but help push up global commodity prices for Corn.
Why this is a surprise to anyone with a brain is beyond me.
The money behind this would be better spent on pushing towards more fuel efficient vehicles, and leaving food/commodity prices alone.
In the UK, average car Petrol MPG is around 40mpg, though we 'make do' with generally smaller cars and do not have a lot lower penetrations of unnecessary and often unnecessaily large pick-up/SUV's endemic in the USA for no real functionaly reason. For diesel powered cars, MPG is 50-60mpg . Noted slight variation in gallon sizes between US and UK Imperial gallon. UK generally 4 cylinder cars, US 6 or 8. See Ford Focus as a prime example of an average UK family car.
In US, average MPG is 20-30mpg which is desperately poor.