Ah, Chris, you have coerced a deep, hearty belly laugh out of me over that last sentence. Having started with my uncle's CJ-2A and moving on to my own CJ-5, I find that the word "simple" is quite humorous when applied to the TJ/LJ series. Those classic Jeeps had no EFI, no OPDA, no ABS or SKIM, no air bags or clutch interlocks. No seat belt alarms - heck, in the CJ-2A, no seat belts! I could go on, but...
I do, however, take your point when comparing TJ's and JK's. The JK's designers (with way too much help from the government) have added too much whiz-bang stuff while achieving too little additional off-road ability. Too many point failure sources. Too much "lipstick on a pig" thinking (and don't even get me started on the JK aftermarket!). To quote the immortal Montgomery Scott, "The more they overthink the plumbing, the easier it is to stop up the drain".
On the other hand, you can't argue with the sales numbers of the JK, and for any auto manufacturer that is the key metric. So maybe I'll just ride off in my little nostalgia bubble, remembering with somewhat fuzzy fondness the "good ol' days" when EVERYTHING was better...