I think this is by system design as others have stated. I've already brought my truck in to the dealer service center regarding the subpar AC temps, even though I knew it would not be rectified other than the AC hack methods mentioned on this site.
I brought it in to simply have it documented with FCA with the hope if enough of us do it, there may be some FCA movement (even though I lost 3 hours doing so

).
I'm not going to bring it in for this issue because I know it would burn at least a half a gas tank or more and it will still go to the same AC issue I originally brought the truck in to document. I just wish RAM would have previously tested the trucks in the hot, humid climates so they can understand what a lot of us are now experiencing.