IIRC, there's something of a peak in the effectiveness curve below the close-to 100% [1] point for ethanol, having something to do with too high a concentration not actually penetrating cell membranes fast enough when there isn't enough water in solution already. It's been a while since I read up on it. The papers are out there, for the curious.
That said, I also recall the European standard of 85% (w/w?) being far better as a disinfectant, as supported by the evidence, than the US minimum of 62% w/w (or 70% v/v). Perhaps instead of a ban, merely increasing the minimum percentage to something that doesn't encourage resistance would be enough.
[1] 96.5% or thereabouts is the highest distillation concentration, above which it would be hygroscopic and come down to that if left open to air.