Hub motors aren't going to overcome their serious limitations. Maybe they could make sense in some lower speed delivery vehicle as CR mentions, but for vehicles where performance and reliability matters, they won't be used.
Conventional motors are shielded from the impacts of the road because they are protected by the suspension. Hub motors must absorb every impact the wheel encounters.
Good luck if you get a flat that requires a spare. Are you going to haul around another motor/wheel/tire assembly?
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