I personally think it could be a great alternative to cars and bikes for those who need to take a whole family somewhere or a decent amount of stuff.
Only modifications I would make would be ride-by-wire and an extra set of pedals (so you can have two people pedalling without the annoyance of normal tandem bikes having to pedal at the same rate), and a more powerful motor (only 250W is legal in France, where this was designed, whereas 500W is legal here in Canada)
The bigger and less convenient it is to store/repair/move with, the less likely it will be used by ordinary people.
Micromobility “devices” are the opposite of cars: People with cars/trucks too big for their needs will still find ways to use them, but people with bikes/scooters will get more practical use out of them when they are compact and easy to manage.
I can see this particular vehicle being an alternative to a rickshaw or city cab for tourists, but not a family.