It accomplishes nothing except replacing the cv joints with something that is more expensive, higher friction and incredibly difficult to keep the dirt out of, even with a corrugated boot.
The motor is still in the same location. It also puts a tremendous amount of stress on the inboard bearings. It’s a shaft sticking out on a pole. That means thicker heavier inboard bearings. More weight, more friction.
It also can’t be used on steer wheels.
An exercise in over-engineering.
Try a public charger. If it won’t charge it is the car. Press the seller hard to fix this.
FYI, never trust the used car lot safety inspection. I was a mechanic for 8 years and the number of customers who brought me used cars to inspect that actually matched the condition of the used car lot inspection paperwork was ‘round about fucking zero’. ALWAYS get the dealer to do a pre-purchase inspection on a hoist. If the seller refuses this, they are liars and are hiding something.