the thing that makes pentiment unique is its detailed craftsmanship in regards to the style and its limited and focused scope. it's certainly not a medieval disco elysium and honestly i get why you would get frustrated going into it with that expectation. DE is basically a masterpiece anything compared to it falls short.

also im not gonna say you're wrong, but i don't think the game really emphasises the loss of scriptoriums. the game is basically about how the past gets transformed into the present, and also repentance. it's not really deep by any means (and the last acts feel rushed compared to the first) but i liked it very much and overall i would recommend it.