Producers of biofuels like ethanol, which could help create a new generation of jet fuel, would have to overhaul their practices to receive tax credits.
I wonder if it's some sort of rationale for keeping the corn subsidies while also framing it a a greener alternative to crude oil extraction.
Edit: After actually reading the article, yes this is the case. Apparently their proposed methods emit roughly 50% less emissions, which I think might be worth it depending on how much is expended to grow the corn and process the fuel. You could be right in the end though but if there are less emissions in general, it might be worth it.
Actually we give corn to animals you can then later eat. If we actually start eating what we instead inefficently feed into animal farming, we could feed twice as many people as exist and still have left overs for creating fuels.