Actually it has 2 electronic Limited slips and 1 locking center diff.
"The Eaton EGerodisc tm is a hydraulically-operated electronically controlled limited slip differential that is capable of providing variable torque up to full axle lock"
A normal limited slip is worthless once you lift one tire off the ground, where the "ELSD" in the QD2 still functions with one tire off the ground. By definition it has the ability to fully lock the axle. It's just that the computer doesn't keep it in full lock unnecessarily.
Since the EGerodisc is variable in it's ability to switch torque from one wheel to the other I believe that's why they call it a limited slip and not a locker. Lockers are either on or off while this is variable.
If you wire a switch to the ELSD and bypass the computer controlled aspect of it you can make it stay fully locked like a normal locker would
To stay on topic, I bought the WK because I started driving alot more miles than I ever had and wanted/needed a 4x4 that got better mileage and I was obsessed with the torque of diesels. Drove a few hundred miles for it and couldn't be happier.