My 2015 DS has the same Wranglers and the pic posted earlier in the thread looks almost exactly like what mine look like. Well – the front ones, anyway.
We've done not quite 25,000K in this car. Mostly on bitumen but this year we've done the Land Rover Experience day and explored some national parks with gravel/rocky roads. Only the front tyres have worn like this – the back ones don't have any of the chipping and much less wear.
My car has the feature where torque is only sent to the rear wheels when the computer thinks it's needed. I think it's called Active Driveline and I think all 2015 model cars got it. Even when you've engaged a terrain response mode like gravel/grass/snow, the DS with Active Driveline makes the front tyres do the bulk of the work, so it's no surprise that they wear faster and if you're driving on rocky surfaces a soft city tyre is probably more susceptible to chipping.
I rotated my tyres front/back today and then went for a lovely drive in the mountains. Lots of crawling up granite tracks in 1st gear (out of 9), and the 4x4i page on the computer showing the majority of the work being done by the front wheels.
So maybe the Wranglers aren't the ideal tyre for somebody who's going to take the car off the bitumen. I'll be looking for a set of ATs when it comes time to replace these ones.

