I don’t know if it will succeed, but it’s a welcome change from the 4000+ lb EV behemoths that are being pushed by automakers these days. Electric vehicles aren’t a panacea unless the power to charge them comes from nuclear or renewables, so energy efficiency (weight reduction/aerodynamics) still matters. A 5000 lb electric SUV built like a masonry latrine will still be suboptimal from an environmental standpoint.
I don’t necessarily think that 3 wheelers are the future, but I’d love to see a sub-3000 lb electric car with roughly the geometry of an early 2000s Civic or Corolla. It’s definitely doable — an 85kW Tesla pack is 1000 lb, but an electric motor is much lighter than an infernal-combustion engine and transmission.