In Washington and maybe in most states there are already moped laws that with requirements and restrictions. Electric vs ICE are both covered in Washington without respect to whether or not the moped has pedals or if the physical shape is that of a bicycle, motorcycle or scooter. I don't know about Florida specifically but at least in Washington the existing laws are already in place and just need to be enforced. It doesn't appear that a Super 73 meets the moped safety equipment requirements so in practice it, and other "ebikes" with similar performance capabilities, shouldn't be allowed on paths/bikeways/trails nor should they be allowed on roads since they don't meet safety equipment requirements. In addition riders are required to wear a DOT approved helmet, not just a bicycle helmet.
And what's with blaming the victim because she wasn't wearing a helmet, if a runner or walker suffered a similar fate would they be blamed for not wearing a helmet also? How would you even know if the outcome would have been different if she was wearing a helmet? Local, state and federal authorities have the right and responsibility to regulate based on many factors, there isn't a reasonable expectations that "electric micromobility" devices should be excluded from regulatory oversight.
Moped Resource Sheet(RCW 46.04.304) "Moped" means a motorized device designed to travel with not more than three wheels in contact with the ground and having an electric or a liquid fuel motor with a cylinder displacement not exceeding fifty cubic centimeters which produces no more than two gross brake horsepower (developed by a prime mover, as measured by a brake applied to the driving shaft) that is capable of propelling the device at not more than thirty miles per hour on level ground. Examples: Use Cannot exceed 30 mph (RCW 46.04.304) May not be operated on a bicycle path or trail, bikeway, equestrian trail, or hiking or recreational trail (RCW 46.61.710) Cannot be ridden on sidewalks (RCW 46.61.710) Cannot be operated on fully controlled limited access highway(RCW 46.61.710) May park in valid moped (MP) parking (WAC 504-15-240) Removal of any muffling device or pollution control devise is unlawful (RCW 46.61.710)Licensing Valid Drivers License needed (RCW 46.20.500) Must be registered and display a valid license plate(RCW 46.61.710, RCW 46.16A.200 and 405) Insurance not required Equipment Requirements 2-3 wheels (RCW 46.04.304) Electric or liquid fuel motor (cylinder displacement of less than50cc, no more than 2 brake horsepower) (RCW 46.04.304) Must meet FMVSS for motor -driven cycle (RCW 46.61.720)which requires: o Two mirrors CFR 571.111 (RCW 46.37.530 and 46.37.539)o Brakes CFR 571.122 (RCW 46.37.527)o Controls CFR 571.123o Head light CFR 571.108 (RCW 46.37.523-524)o Tail light CFR 571.108 (RCW 46.37.050)o Brake light CFR 571.108 (RCW 46.37.525 & 070)o License plate light CFR 571.108 (RCW 46.37.050 and RCW 46.16.240)o Red reflector to the rear CFR 571.108 (RCW 46.37.525)o Tires CFR 571.119 & 120 (RCW 46.37.539)o Horn (RCW 46.37.539)o Muffler (RCW 46.37.539) The operator and any passenger are required to wear a USDOT approved helmet meeting the requirements outlined in 49 CFR571.218 (RCW 46.37.530). Windshield or eye protection (RCW 46.37.539)