Is generally reckoned to be a Good Thing. Not-Invented-Here and solipsistic DIY frowned upon. The danger, of course, is when the shoulders one stands on come with feet of clay. If, for example, someone in the 16th century mis-interpreted a 12th century book and the mis-interpretation becomes the foundation of generations of shoulders, fun ensues.
So, just like the kilt isn’t Scottish, witches weren’t burned by their millions by the Church of Rome and Columbus wasn’t the first man to realize the
earth was a globe, the Middle Ages turned out to be clean and not feudal at all.
Now for a historian who manages to undo the artificial separation between the history of the Christian West and the Christian East.