Please read the NMFS BiOp comments more carefully:   "It is NMFS' biological opinion that the navy's activities are not likely to jeopardize the continuing existence of these threatened and endangered species under NMFS jurisdiction."  No one ever suggested that NE exercises would push any Threatened or Endangered marine mammal species to extinction, and the NMFS opinion simply states that they do not think so either.  But that does not address the significant injury that can occur, or how easy it would be to avoid such by rescheduling the exercise to winter -- Neither Mr. Johnstone (nor you) address this ask at all.