They probably shouldn't be seen as more authoritative than today's best Latinists. However, on statistical grounds, I'd sooner trust a random Renaissance Latinist than a random present-day Latinist, since really good Latinists were much more numerous then than now.Sure, but I mean rather that many moderns might see Latin usage in the Medieval or Renaissance periods as authoritative in a way that 21st century composers (of Latin) are not; for my part, I would not agree.