1) Class 2 doesn't allow for both because it is just making a distinction between the two types of bike.
2) I don't think PAS 28 mph is considered safe, it is just considered a bicycle that should be on bike paths adjacent to roads and not causing a hazard to others using dedicated bike paths for other reasons at much slower speeds. Children, Joggers, Walkers, Regular Bikers
3) It seems to me like perhaps there should be a class 4 to allow for higher power throttle bikes. However, if these bikes don't require pedaling, then they are really no longer bikes and should fall under a moped category.
1. Well, that's kind of ridiculous isn't it? How many reviews has Court R done, espousing the benefits of have BOTH a PAS and throttle option? The flexibility, the ability to accelerate better from a stop, pas saves energy...several other pluses to both.