Even Cruz's monkeys at Hot Air are reacting negatively to this. Cruz even called for breaking the "blendwall," as Hot Air notes:
"And it wasn't just the RFS. Oh no! Ted came out with a promise to break the blendwall. Limiting the total blending of ethanol to 10% is the only thing keeping the flood gates partially shut on this mess as it is. What are you talking about Senator Cruz?"
Cruz previously opposed even there being a "minimum" amount of ethanol, which Hot Air quotes, but now wants to break the "blendwall." Hot air continues:
"The difference is that I clearly compared this position to the one Ted Cruz has taken with us at various stops, including CPAC, where there was no talk of a phase out. He said repeal and received well deserved accolades for it. And if you don’t think that Cruz has been doing that, don’t take it from me. Take it from Amanda Carpenter who is pushing back on this the hardest."
This is a typical case of Ted Cruz not telling the whole story to conservative audiences when he is pandering to them. He did the same thing for 9 months on immigration, not bothering to tell them he was not taking legalization off the table, until Marco Rubio forced his hand (and even that had an attempt at lawyer jargon).
So just because they are ignorant doesn't mean flip flop. And breaking the blendwall would not be done with subsidies. If you don't need subsidies you should be allowed to negotiate the blendwall with manufacturers. Most of us will go for the cheaper (without subsidies) pure gas.