Lawyers love to float between "intent" and "letter" of the law to suite their agenda. I had a graduate level business law and ethics class and this was a significant discussion but it's my understanding that "letter" is what judges use unless there is already precedence. If only intent mattered then our laws would be as simple as the Ten Commandments. I'm 99% sure that the "intent" of the ebike definition that Dr. Currie was involved with was to federally define a low power electric bicycle as just another bike type (mtn., road, gravel, recumbent, trike, etc.). He was working on an ebike in the late 1990s that had blinkers, head light, brake light etc. and he knew that if they were federally classified as a motor vehicle that the requirements would stiffle the technology.
Do we really want states defining what a bike is, ebike is, moped is, autocycle is, automobile is, etc. That to me makes no sense. What is some state decided no car could have over a 1.6Liter motor. You think they could enforce that the next day without a huge legal battle. Not a chance.
Look at the ebike tax incentive bill that is being proposed. They mention to get the tax incentive it must be a Class 1, 2, or 3 ebike purchase but CPSC owns jurisdiction thru 1st sale and they don't give a f*ck about the stupid classes so how can the tax bill be based on the class system that is not even adopted by all states. This is just another example of lawyers / lawmakers not thinking (they are so pre-occupied with control and money they don't do their jobs.