No, they put him under house arrest because he wrote a book about for the Pope is a moron for not agreeing with him, after the Pope explicitly asked him to write a factual account of the theories at the time.
Tyrannical? Sure, like any monarchy. But not anti-science.
stuff like, "The Middle Ages are often said to be dark because of a supposed lack of scientific and cultural advancement. During this time, feudalism was the dominant political system" is pretty common, even Wikipedia: https://en.wikipedia.org/wiki/Dark_Ages_(historiography)
"The Dark Ages is a term for the Early Middle Ages"
That is the normal understanding of "dark ages" among historians.
"The Dark Ages is a term for the Early Middle Ages, or occasionally the entire Middle Ages, in Western Europe after the fall of the Western Roman Empire that characterises it as marked by economic, intellectual and cultural decline."
So the term is highly disputed and what I understood from there, is that no historian TODAY use Dark ages to describe any moment of the Middle Ages. At least not the serious historians.
I'm not Historian, I'm computer scientist and Philosopher. Dark Ages for me is first connected with the Greek Dark Ages, or Digital Dark Ages.
Arguably European/Byzantine society was already quite a bit more advanced in many areas by the 1100s. And the dark ages ended with the Carolingian renaissance. If an ancient work copied by the 900s AD or so the chances that it survived until our day is relatively high, if not.. well it’s gone.
Tyranny is inherently anti-scientific. Right and wrong are determined by the validity of your observations and reasoning, not by power.