Marketed across the globe, I should think this will sell in considerable numbers, probably measured in dozens or hundreds but thousands? I think not.
I give most people credit for seeing the limitations of such a machine and not being prepared to line someone's pockets just to ride around for a short time on a heavy, ill-conceived contraption which most would have difficulty manoeuvring into or out of a vehicle, for example.
It isn't particularly original as other two-wheel drive scooters/bikes/motorcycles have been created previously and none has ever become mainstream. Undoubtedly, beach use will be strictly forbidden in many places so the idyllic lifestyle photo in the link is probably rather misleading.
The wheel re-invented again.....not quite!
Tom