Yes, it's very disingenuous to take the quote the abstract concludes on which plainly supports the social sciences as true scientific fields, contrary to what the OP implies through scare quotes.
By the way, here's the full chart since you're so worried about taking things "out of context":

I guess economics is just a more robust field of science than biochem, pharmacology, clinical medicine, materials science, and psych, because that's totally what the data means. I am very smart(TM).