Back to the Van Moof. It's ugly, as all Van Moofs are (IMO). They at least have consistent styling! 2WD is presumably going to be advantageous off-road. There have been experiments at making 2WD conventional (petrol) motorbikes, using chains and things to the front wheel, but never with much success.
As for the speed, I thought, without checking, the speed limit for both mopeds and e-speed bikes was 45km/h not 50. But 50km/h is a common urban speed limit and there are markets beyond Europe, so why deprive it of that last 10%? It does say "depending on local regulations and how the bike is registered". Well, that covers their legal arse, I guess.