I agree with the OP but only partially. UniProt is a good counterexample of a database that has been built by extracting knowledge from publications and that is

I agree with the OP but only partially. UniProt is a good counterexample of a database that has been built by extracting knowledge from publications and that is incredibly useful. But it took decades of expert hand-curators going through piles of articles to get to the current state. Also, proteomics articles report very simple outcomes that relatively easy to annotate. For instance, the subcellular localization of a given protein isoform.