Yah. There's some reason for ethanol in the fuel mix. Having the ability to do it at some scale is good for security purposes, and it helps tailpipe emissions.
But that's a lot less corn-derived ethanol than we currently make/burn.
> There's some reason for ethanol in the fuel mix.
Uh, maybe from a "we can grow our own fuel perspective", but I've never seen a car run better on E10 or E85 than E0. Basically everything (including the newest and fanciest engines) runs like ass if you've got ethanol in there (and now you have to contend with your fuel having a component that's hydrophilic, which is a huge problem in and of itself, and brutal on natural rubber). Some things specifically built for ethanol as the primary fuel might be OK, but E10 is kind of a travesty.
We'd have been better served just working more towards synthetic gasoline and biodiesel (and I'll make a strong wager that there's still going to be a lot of gas/diesel powered stuff 20-30 years out, and we're going to be going back to trying to get good at synthesizing fuel).
It does have higher octane than gasoline, so with the right tuning it can run in higher compression engines and be beneficial, even offsetting the lower caloric density.
But that's a lot less corn-derived ethanol than we currently make/burn.