Let's all remember that, although E85 and FFVs have been around for 20 years (well, 80 if you count the model T), but the push towards renewable fuels is only 3 months old, if you take the State of the Union Address as the start point of awareness for middle America.

Given that, FFV acceptance is at an even earlier/immature state than hybrid acceptance. It will take years of education from multiple industries to placate and convince consumers, and just as long to build up the infrastructure to seriously deploy E85 on a national scale. It cannot be sent through existing pipelines and needs to be mixed locally, so that's the biggest single engineering challenge beyond scaling production.

Give it some time. Frustrating, but it needs time to evolve.