From the photos and report on AVH it is clear that the actuator atachment failed, NOT the gear attachment. As for 'penetrating' the wing, no it didn't, the mechanism is already inside the wing, and the only item damaged was a non-structural composite access panel on the wing upper surface. Not supposed to happen on a 4 month old aircraft though...
What I would be more interested though is what kind of indications were the crew faced with, as this happened during retraction, and how did they ensure that it was down and locked for a landing?