I've seen them peal like oranges and others like Barn's stay complete. Based on the 1987 Chevy paint issues (2 tone blue was the worst) I suspect it could have something to do with the paint code quality, or even batch variances. Only the makers and their suppliers know for sure and they'll never admit it.
There have been other finish fiascos as well. In 1970 Ford either started out with rusty metal, or left the coils outside and some of the cars they used it on rusted through in less than 2 years. Then in the mid 70's GM started using pre-galvanized sheet to make cars and didn't use the proper primer. I recall pulling paint off the doors of the neighbors Monte Carlo in sheets as a kid
Anyway, truck looks great on the outside!

How's the dash? (another Dodge fiasco). Coverlay in San Angelo TX can fix that up for you.