These are my thoughts.
+: I liked that it kept an open attitude, that the definition is open to interpretation.
-: Of course this could also be read as a cop-out because some things are romantic, some are not, and loosely defining something makes it difficult to decide what is defined by it, and what is not.
?: What possible grounding do they have to say there was grand unified pessimism?
Z: It mentions that changes in social life edged on the change, and that is a second layer of art imitating nature.