Sure, I get that part, but in this case it seems like curation (at least to a degree that would avoid the problems that arose) is fairly trivial - just train it

Sure, I get that part, but in this case it seems like curation (at least to a degree that would avoid the problems that arose) is fairly trivial - just train it on high-quality scientific journals/textbooks/etc., instead of letting it peruse the whole internet (or whatever they did) for scientific data.