I remember exiting Windows 3.1 to the MSDOS command prompt and then shutting down.

That doesn’t say anything about lethal range. It just says they won’t allow it to be lower than the ISS’s orbit. It could be because of “lethal range” or it could be that they want as little crap in the way of routes to and from the ISS.

I looked over the article (albeit very quickly) just in case you didn’t quote enough of the article on accident and I didn’t see anything about lethality. I could have missed it or I’m not reading between the lines (maybe missing their meaning in the article).