My real problem was with the tone of the article. It doesn’t invite reasoned debate any more than if the writer had titled it “Your mamma is a whore and you are too”.
As to your point I agree. We way underestimate the effects of things like modern sanitation, antibiotics, refrigeration etc. We don’t have 8 people living in a 10x10 cabin with farm animals wandering in and out. Its pretty rare for someone to die from a scratch or stepping on a nail these days.
If an AIDS vaccine is developed are we going to vaccinate nuns against it?
Actually a nun did die of Aids. She got it through a blood transfusion.