High speed induction charging for high power applications is currently not practical and may never become practical. For the vehicle, you would need a very large coil of copper wire mounted on the bottom of it. That takes up a lot of space and adds to the weight.
Air is not a very effective or efficient medium for magnetic flux to pass through. And the performance declines significantly as the distance between the two coils increases. That could be overcome by one of the coils moving into contact (or almost) with the other. But that introduces more mechanical equipment, increasing the cost yet again.
An automatic electromechanical coupler would be the more practical way. As long as the vehicle has a good enough guidance system to line up with great precision.