@UJM That the extent of Chazal’s knowledge includes things that weren’t possible or knowable at the time is in fact mostly without merit. Chazal didn’t invent vaccines because they didn’t have the knowledge of vaccinology. They didn’t understand electricity not because they were deficient, but because they didn’t have that scientific knowledge.
There are examples in Gemara of Chazal using methods of being matir women using methods that are anatomically perplexing knowing what we know now about the human body, but the reality is that Chazal (I believe it was R’ Gamliel in that case although I may be wrong) were experts in THE SCIENCE OF THAT TIME. Either that, or he knew the reality and decided to concoct a excuse in order to be matir a woman who he knew was pure but who might not have had any proof to that.