Both are working as professionals in their respective fields, regardless of their employer; I'll give them that benefit until an overt bias is demonstrated and not ascribe intent to their findings beyond uncovering facts.
I'm almost certain either or both would give scant attention to the myths of  Brigid or Olympias having been made bishops.
Latin words with feminine endings?  That is a surprise?
If there existed incontrovertible evidence of priestesses in the Catholic Church, we'd have priestesses in the Catholic Church.  I've noted before my contention that if one worships a god that cannot overcome a bunch of old, supposedly-misogynistic, ostensibly-rigid men, given two-millennia in which to do so, that's hardly a god to worship.