I think on these points I agree. Given how fast and efficient even the cheaper microcontrollers have become there's not a reason for any new spec to avoid the h

I think on these points I agree. Given how fast and efficient even the cheaper microcontrollers have become there's not a reason for any new spec to avoid the highest quality error detection and correction. It's fair to point out that my decent results with this equipment might partially be down to a pretty RF-quiet environment, avoiding USB hubs for all the reasons a person might want to avoid USB hubs, avoiding piling on devices, and so on. Trying to make some of this equipment fail would be an interesting thing to experiment with someday.