Sure? Nope. As I said, I didn't write it.
Wouldn't surprise me at all to find they're accurate, though. Consider how many treestands are already in use, and they're coming off the assembly lines every day.
I witnessed a hunter slip while climbing down last january. he dropped about 15 feet in a split second. He did not have a safety harness of any kind attached to the tree. Nor have I while climbing in the past.
That's changing, starting now. I bought a Seat of the pants harness yesterday, after having a rep demo and explain it to me. Then this morning I decided to do a search on the net and see what people were saying about this harness, and found the article. I decided that a wakeup call was in order, as I think (my opinion only) that the people most likely to have an accident, with stands, guns or most anything else, are either the extreem newbie who is just starting out and may make a mistake through ignorance, or the old-timer who has been doing it so long without mishap that he considers himslef the safest person in the world. This level of confidence may make him careless.
I'm a treestand hunter, been using them for over 20 years. But they can kill you, or worse.
If wondering how accurate those numbers are makes someone pay more attention to details while climbing, it may just make a difference.