Is "Nothing about this paper is new" an appropriate response when the abstract explicitly mentions that it's a survey paper? Maybe I'm just sensitive, but to me that sounds dismissive rather than purely informative.
Well, the poster may have just rephrased the formula («survey article»), or may have noted it for the benefit of the skimmer, or just used it for the conclusion out of their judgement "for an overview it does its job". «sensitive ... sounds»: the author is apparently a native German speaker and not only different minds and cultures weigh expressions differently: there could even be a linguistic bias. We are mandated and obliged to «Assume good faith».