No, they don't have "fine" brakes! The 94-2001 Rams were known for having poor brakes. And that has nothing to do with rotor quality, they needed bigger rotors and better calipers even more. When they decided to put 20" wheels as an option, better brakes were a necessity.
I've been driving, and buying new cars and trucks since 73. I never had a warped rotor, period, until my 1988 S10 Blazer got them at about 12K. The dealer turned them, and they were ok, until about 30K, when it came back, right after I had to replace both front tires after running over a huge pile of screws in the street. This time, I had to have rotors and the dealer replaced them under warranty. No more problems.
My next vehicle, a 93 Grand Cherokee, warped the fronts by 6K, and had to have new rotors at 15K. They were so bad turning wasn't an option. Mopar gave me those, but refused to go for another pair about a year later when they were even worse than the first ones. I bought some hugely expensive aftermarket ones, and they were fine until I got rid of it in 99, when I bought a new GC, and it warped them by 7K, and needed new ones, that DC did do under warranty, at 14K. They were as bad as the first ones, but aftermarkets weren't so $$, so I went with them, and solved the problem.
The seats in the 99 killed my back, so I traded it on a 2000 GMC Sierra, and warped both front and rears within 6 months. The rears never warped again, but the fronts were turned twice and replaced under warranty. They warped really suddenly and really severely one morning during a rainstorm. I went and bought some cheap aftermarkets, and the problem was solved. Not to say the brakes, the ABS on the rears ever worked right, a small bump made the whole system freak out, and it's amazing that the govt hasn't made them recall them and fix it.
When the Sierra was wrecked, I got my present 2003 Ram QC 4X$, and at about 7K, the shakes and pulling started again. The dealer turned the rotors, and they were ok until 24 K, when they warped again. They turned them again, and they just were legal(I saw the reading). I will need front pads next spring, and rotors too. I will try powerslots or some other decent aftermarket rotors before wasting my money on factory junk ones. When the rotors are straight, my truck stops amazingly fast, and straight..
Side by side, the difference in rotors, even some of the crappiest aftermarket ones are noticeably heavier than the stock ones, and appear to be machined a lot better too. The difference between the stock Sierra rotors and the cheap aftermarkets was so obvious, just by looking at them side by side, it was clear the 25 buck each aftermarkets blew away the factory ones. They were much heavier too.
BDK