I have tried the model, and I agree with you on the point. A product was uploaded for a test, the output catches the product quite well, but the text on the generated 3D model is unreadable.
I noticed that too, looks like the woman portrait was sold at Christies on 2014. https://www.christies.com/lot/cornelis-de-vos-hulst-c-1584-1...
And the provenance says the painting has been in the present owner's family since 19th century, maybe there is some clue on the family.