I agree with you, however it seems that driving style affects the build up. If they are under load, as many trucks usually are it is not so bad. If you drive easy, lots of idle or trying to get good gas mileage, these are the engines that get the bad buildup. Not saying this will happen to every 2.0 Jeep but it will depend on the driver. The gas detergents never touch the valves or intake ports unless there is a secondary injector.Carbon buildup affects every DI only motor. That said, there are a bajiliion F-150s with 3.5 DI ecoboosts running around with 150k+ miles and they are just fine. No they don't make as much power as when new, but you would be hard pressed to tell.
While a few people have experienced poor running engines from a variety of manufacturers due to carbon buildup, it's mostly forum hype. Enjoy your vehicle and don't stress over what "could" but probably won't cause issues in the future