I did not realize it either, but now that you mention it I do recall the wording reads something like "NJBSC required to operate a powerboat"-- so they are calling anything with a motor a powerboat. Also believe now DMV wants you to register your elec trolling motor-powered boat and put on numbers, etc. Don't forget a BOAT endorsement on your driver's license is required ALSO to operate a powerboat in non-tidal waters.
Pretty soon I'll need numbers and a fire x on my canoe...
My grammy had a saying- IT'S TOO MUCH!!!