A lot of people here are Americans, so they mistake Evangelical Christians as "normal Christians" or as a regular phenomenon.
So they associate that being religious means to be superstitious and only accepting myths or sacred texts like the bible (so written myth) as literal accounts of reality, instead of stories full of metaphors and symbols.
Greek Theater was something explicitly religious, it was a ritual for Dionysos, yet we don't consider this entire art form as something religious anymore. Anything art-related that is part of our identity is Religion. Doesn't matter, if you consider yourself a Christian, Pagan or Atheist, but if you are Western European, then our giant gothic Cathedrals will probably invoke some form of awe in you.
And even if you are a pure Christian, then going deep into a forest is probably a spiritual experience for you too.
And when old germanic myths and sagas are a core part of being a pagan than why do we consider modern art and media as not as similarly important? I don't want to go all bugmen and talk about superhero movies, but it's obvious that Deities like Thor are still kinda alive with the movie and people running around with plastic Mjöllnirs are kinda worshipping Thor in a weird way. (I just wish they were written by a people that was benelovent towards us and don't try to damage our spirit by subversion)
Though there is one thing Christianity can definetly be blamed for, that really halted the advancement of science and that was the transition period from pagan Europe to Christian Europe. Christianity got rid of the private tutor system and many philosphical schools, because they were competitiors. It's kinda understandable in a purely machiavellian sense, but still bad for science long term.
Although it's also really undervalued how it was Muslim Piracy, Slavery and Conquest that set Europe into a Dark Age, not necessarily the fall of the Roman Emperor. Because Visigothic Spain managed to maintain Roman Culture and Standards very well, which is why people love to glorify Muslim Spain after that and give it all the credit for basically inheriting that from Visigothic Spain.