What I can tell you from using several different synthetics over the years, and repairing sling swivels in some others for friends, is that how you treat a rifle matters. To be sure, mine get used, have scars, and require upkeep. Ultimately they are tools - beautiful, elegant, precision instruments, certainly - but tools nonetheless. Treat your tools with reasonable care and they will serve you well.
I suspect most of the sling swivels pulling out are related to two things: people attaching bipod and not knowing how to use them, and ripping out studs, or people grabbing the rifle by the sling, and wheeling it around, twisting the stud back and forth until it strips. There is an easy fix which takes only a few minutes and minimal cost when a stud strips or pulls, provided you didn't blow apart the hole. Use a machine screw style stud with a nut, and countersink the hole in the inside of the forend. I've gone as far as epoxying that nut in place in some scenarios, to good effect.
My guess is the cracking is primarily the painted finish cracking, which is just part of use. These stocks can be refinished for not much, either at home or by the manufacturer.
If you're looking for durable and easy to carry, the Wilderness will suit you fine. It is at least as durable as a wood stock, and likely far more so.