I think this might be just because their comment is borderline useless - it is so condensed that one can hardly make any sense of it.

So what did they want to say? Is it "Science, it works?" like in XKCD comic #54? Or are the quotes around science the actually important thing, casting doubt on it? It's hard to tell because they did not bother to spend a few seconds to actually write it out.

Beside that there is more to papers than just their abstract. If you are curious, you can check section "Global LWS trends and drivers" for the answers to your questions.