If it ain't broke don't fix it. My truck does everything I ask of it. I am not a fan of level/lift kits, aftermarket wheels and big tires, a big portion of "Consumer Demand" and suspension products. What I did see, was as many upgrades listed for 3500's as I did for 2500's. I looked at Carli and Thuren since I see those on here from time to time. One search I did for Ram 2500 suspension issues even said the OEM was great for off road and towing. Most were looking for a softer ride.
So, to be fair I did a search on Ram 3500 issues and ran into a consumer reports of the 2017 Ram 3500 being at the bottom of the list and 10 recalls.
Almost all of my towing is with a gooseneck, so bed level pin weight. A gooseneck by design will rarely overload a pickup truck. A fifth wheel RV or slide in camper can. I have posted several scaled weights on here with 26-27k gcw, the truck is always right at 10k, it's rating. I did add airbags, a win win.
I will also say, a big share of truck modifiers do it to be cool, so marketing, unscrupulous shops and being the biggest and baddest on the street is the goal. If you do all your own work/repairs like I do, you get a feel of what is good and what is fluff.
Massive shortfalls? I didn't find it, nor do I have it.