Reaching back quite a few posts...
Steel slings and chokers have nearly gone by the wayside in crane work & heavy lifting in the last 10 years or so. Take it from a former utility worker (everything up to 100 tons) that given the chance, guys will use soft, light and flexible tools over hard, heavy and painful steel. That being said, understand that when the company pays, working folks will take the best care of tools that take care of them. In everyday work practice, ALL mechanical connectors be they steel or fabric, will suffer wear and tear. The synthetics we used wore out faster than steel - not due to lifting stress, but due to dirt, sand, grease and other contaminants.
Was that a problem? Not really. Ease of use (by professionals) makes up a big part of the time (and cost) it takes to lift a 100 ton transformer to the top of a building.
Putting that in the context of "recreational use" requires a definite transition into reality. Big time thrashing and multiple winching moves the mark into near professional wear and tear. It also introduces the environment: playing in the rocks is not the same as a well planned, clean and purposeful work effort (with company $$$ backing it) with multiple back-ups and plans (A, B & C).
I also want to suggest (without prejudice) that the quality of skill and knowledge with which these efforts are approached has much to do with the successful use of any equipment.
Finally, given that there are no hard edges, I do not see any reason why Dyneema or other super-strong synthetic slings, or "shackles", or any other appropriately designed rescue/recovery tools would not work just fine.
Except of course, for operator error.