I scanned the first article you posted above. I didn't read the whole thing. I agree that it is hard to read even if you are in the medical field. However, I don't agree with you referencing it in this discussion, which is about, in part, the possibility of cholesterol lowering drugs causing PN.
My reading of this article is that there is no proven relationship. In fact, I think that they may be implying that there may be a therapeutic relationship to be discovered in the future.
If I am correct, then this is another example of well meaning people posting things that may scare off people from proven treatments because of rumored, low probability or incorrectly stated side effects.