What is even more notable is that the Rambam says that even one who denies the entire Torah Sheb’al Peah is not an apikorus. The shechita of an apikorus is pasul, but the shechita of the Tzedukim and Baytusim who did not believe in Torah Sheb’al Peh is kosher, bdieved, if one supervised it. See Rambam Hilchos Shechita chapter 4.
In general, a difficulty with the science found in Chazal is that it doesn’t have a mechanism associated with it. For example, there is a gemara in AZ which says that for an ear condition, one should take a kidney, make some kind of an extract and put it into the ear. However, the gemara gives no info on what molecule in the kidney is reacting with which molecule in the ear to effect the cure.
It is extremely hard to reconcile our current way of thinking with the cures of Chazal, simply because we have no info on how they are supposed to work. I am not saying they do or don’t work, but the info is so sketchy that there is little to go on.
BTW, Joseph, why do you need so many usernames? Mods, why do you allow it?