What the church allowed to be broadcast as the common and learned knowledge was in accordance with doctrine.
All else that was obviious was purged.
Wisdom which was hidden differs from that view pichlo.
Gnosticism , sacred sciences that used mathematics, and such studies used very complex formulas ..in fact.
And the gnostics in turn took their knowledge from the older civilizations ..the greeks, egyptians, babylonians, etruscans...
There were many diverse theories and beliefs including the universe being hidden behind a veil which concealed the clockwork mechanism of the divine.

It has always been the idea that current understanding is so much more accurate and or "real"..
And past civilization is quaint, simple, or at worst inferior.

But any modern civilizarion would be hard pressed to build the ancient monuments today with the pinpoint accuracy with which they were built using crude simple tools.

The ancient temples being observatory usage...as much for the advancement of science as prayer...

It was only the advent of the dark ages that saw our knowledge hamstrung and people forced to believe a controlled concept.

When the ancients ...including the greeks...for example...calculated with their observatories the landmass of the earth to within a few thousand hectares...
Then that says volumes concerning just how complex their concepts were of the world and universe around them.