Superbugs are bacteria that develop an immunity to antibiotics.

From forth the fatal loins of these two foes A pair of star-cross'd lovers take their life; Whose misadventured piteous overthrows Do with their death bury their parents' strife.

Instead, she suggests, the romanticized, paratextual Wincest slash fiction offers Sam and Dean a redemptive happiness that they are perpetually denied by the show's writers both in a diegetic sense (via Chuck Shurley, the show's writer/prophet who publishes novels based on the boys' adventures) and in a non-diegetic sense (via Eric Kripke, Sera Gamble, and the show's returning writers).

This fits the Defence of Poetry's preference for the foreconceiving act over the work it yields, a work valued primarily as the groundplot for still further invention by the reader.