I think this isn't as bad as people make of out to be. The 100/20 goal is perfectly fine for the vast majority of users. The only thing really supporting the old goal of gigabit connections was fiber. I would rather see the expansion of traditional cable or even satellite to rural areas. Fiber plans tend to be expensive and mostly available in the areas that already have usable high speed options. If we really want to target overall coverage and affordability, then this does make sense.
Edit: why disagree?