Cant say I am exactly shocked at the result...
I get the feeling the reviewer doesn't really know what he's talking about. The same rhetoric was spouted when the XJ first came out. It took a long time for the XJ to lose the 'grocery getter' moniker. I think Rubicon Express really helped the XJ. But it's cool to hate on the new platform.
The RTI ramp means very little in the real world. It also doesn't matter how much more it's able to articulate if it can't put the power to use. The KL has lockers and lower overall gears. It was also able to get up the hill where the XJ struggled.
It will be interesting to see where the Aftermarket takes the KL. If they embrase the platform, it could go just as far as the XJ did.