Torque management and traction control are two totally different animals.
To be clear, torque management limits the amount of torque in the first two or three gears, and unless you were stomping on the accelerator when you were stuck(I forgot whether you said snow or mud), it's not likely it was activated. Since one generally babies the throttle when stuck in the muck looking for traction, you weren't likely asking for more torque than what was available to you.
If you're wondering whether the diesel ZR2 will have it, abso-fucking-lutely, but again, given the same situation I'm not seeing it come into play.
FWIW, it's there to stop you from rolling into the local dealer's service bay with burned trans clutches, broken U-joint, R&P damage etc.
Even tuners/programmers tend to keep it active. Some programmers (on diesel trucks where they're available that is) come with several different maps pre-loaded(I had a PPE for my LBZ that came with 9), and warn you that if you're gonna run higher than level 2(on said PPE), you need to first have someone like Inglewood or ATS strengthen your trans, as these maps remove the torque limiter, and if you're lucky all you'll do is smoke your clutches. If not, maybe break an input shaft, drop a driveshaft and catapult the rear of your truck over the front, or smoke an R&P etc.
I'm not aware of the traction control being automatically turned off when engaged in 4wd, in which case it definitely would activate if you were spinning.
I thought the traction control icon lit up when it activates on this truck, however(in which case you'd obviously know when it's activated). Am I wrong?
I've never paid attention
Now, if I totally misunderstood what you wrote, then forget what I said.