I still stand by my original statement as above.
I'm with Yendor. Apart from the fact that anything snatching a vehicle theoretically shouldn't exceed its tow rating in doing so, Nissan and I would say the 4wd clubs use these points as they were designed. They probably weren't designed for tyre deep sticky mud either but they are there for a reason. Sure there are stories of them being straightened but who can be sure they were actually being used correctly in the first place.
It doesn't matter what you believe etc etc everyone is guilty of exceeding something during a recover the only way anyone wouldn't have is if they havent been recovered or recovered someone there selves.