[oldE]

Unsprung weight and at no point in the video did they show how power gets from the electric motor to the hub during a steering input. Have fun sealing that system. Ferdinand Porsche was a century before his time.

Notice they did state the efficiency of cv joints diminishes with increases in angle of operation. This is not that big of a deal in most applications as most passenger vehicles spend the vast majority of their time with very little deflection.
The end of the article mentioned specific use vehicles. I can see this system being useful for fork lift trucks mining equipment and other applications where you need all power available in tight turns at low speed.

Best
Les