And I also have seen too many people using the nylon shock buffers. They get smashed up too fast to claim there still isn't a battering issue.
I don't use the buffers, but wouldn't the tolerances of about any gun chew up a buffer? If you put a buffer in any polymer pistol I would expect it to get smashed too. I get what you're saying about polymer shock absorption, I'm just guessing all functioning pistols tolerances are too tight to stuff a piece of plastic in it and expect it to last very long.