Aren't those already not classified as ebikes and therefore treated as motorcycles? They need insurance, registration, etc but are being driven illegally just like people drive cars illegally.
> a maximum assisted speed of 32 km/h
https://www.ontario.ca/page/riding-e-bike#section-2
Anything with power assist above 32kmph isn't an ebike in Ontario and would therefore need insurance, registration, license, etc.
The issue is the lack of enforcement. It's crazy the number of stores and brands with illegally fast ebikes!