Regardless of all the "he said, she said", libel or not libel, email response times, GMP, threats and whatever drama:

Is there anyone who is seriously contesting the "it is intended to cure/prevent a disease, therefore it is a drug, therefore it needs FDA approval to be sold legally" line of reasoning?

More humoristically: https://xkcd.com/2475/ and https://xkcd.com/2530/

Less humoristically: https://en.wikipedia.org/wiki/Thalidomide