Faulty Data: XJ Cherokee's break over angle is better than TJ Rubicon's
First of all, yes the Renegade's break over angle is better than the unlimited Rubicon's but that's actually not very difficult to find. If you,look at Tacomas, Defenders, FJ Cruisers, old Rav4s and Escapes, and any stock 1980s truck, you'll see that their break over angles all surpass the 4 door Rubicon's. In my opinion its been a weakness of the unlimited jeeps since their 2007 inception.
Also, I have a stock XJ cherokee and its break over angle well surpasses what is indicated on the chart. The data probably measures the wheelbase with the vehicles overall ground clearance which is around 8 inches due to the low-hanging rear diff. However, in the middle of the XJ, (where the break over angle is measured) it boasts around 11 inches of clearance. My trigonometry is rusty but 11 inches of clearance (slightly higher than a Rubicon's) plus a 101 inch wheelbase, a whopping 15 inches less than an unlimited Rubicon's, cannot possibly equal a break over angle less than 22.6.