I'd run it in the Cruze if they were out of premium and I was out of gas. Ethanol reduces knock, so that means more boost. More boost = more power!!! Well, up to a point where the engine is demanding more fuel than the injectors can flow.
I do think this still is a horrible idea, but the sky isn't falling like some folks are saying. And for not being a FFV, that's a sensor, larger injectors, and retune to run on E85. The fuel system likely won't know the difference on a current-year car. It adds about $300-400 to a vehicle's price, so it's no surprise that it's not common except on some larger trucks to get the very generous EPA credits for FFV's.