Thesis Scholastic reasoning was rigorous, but it was rigour inside a fence
Where it stands
I'm an atheist, and I don't share the old Enlightenment sneer at the scholastics. The method was superb: state the objections, distinguish the senses of terms, answer point by point. Modern philosophy papers are built on it.
But I want to argue that the method operated inside a perimeter it could not cross. Premises supplied by revelation were not up for revision. Objections were answered, never allowed to win against the creed. When arguments started going in unwelcome directions, the fence was policed: in 1277 the bishop of Paris condemned a long list of philosophical propositions, many drawn from Aristotle and his Arabic commentators, and teaching them could bring excommunication.
A method that can't revise its own premises is sophisticated reasoning, not open inquiry. That matters, because people now praise scholasticism as a model of free intellectual exchange.
Thesis: scholasticism was rigorous argument within a fixed canon, and it should not be held up as a model of open inquiry. I expect pushback from the believers here, and I'd like the strongest version.