I haven't had the pleasure of visiting for any meaningful time unfortunately, however e-bikes aren't an Italy specific problem. If anything, the situation by your description is a failure of lawmakers to create classifications for this new technology as it was emerging, and that is an issue every government around the globe experiences. Technology always outpaces rule of law.

I don't doubt that there are a lot of these modified e-bikes racing around, but claiming nearly all of anything is operating out of the norm strikes me as quite off centre. Even sitting at a cafe or a park bench and using tally counters to track obvious e-bikes compared to non obvious e-bikes would reveal a ratio more closely resembling sales volumes of bikes vs e-bikes than what that operation in Milan put on display.

Regardless, we're sort of straying from the point here. The law as implemented in New Jersey is throwing the baby out with the bathwater. We shouldn't be making rules about the fastest moving e-bikes and applying them to every subcategory. As the law stands, some overzealous officer could interpret this Ducati to be subject to licensing and insurance requirements.