[DennisP]

The wheel can move up and down relative to the motor, so you can still attach a shock absorber to the wheel, without the motor being involved. The video shows this at 2:36.

[benj111]

Yes my point is, why have the complication of this set up at all.

[DennisP]

To me it doesn't seem any more complicated than a pair of CV joints.

Benefits according to the article: "reduced packaging size, improved ride quality, greater durability and, importantly, increased efficiency."