Conflicting signals (Destiny)

by Cody Miller , Music of the Spheres - Never Forgot, Monday, March 12, 2018, 19:18 (2525 days ago) @ ZackDark

So Ghost is surprised Nessus is NOT a cold dead rock, but Failsafe directly tells us there was some living organisms there.

So:

• Did she mean her crew and crew alone?
  
• Does Ghost "simply" not know the Traveler terraformed Nessus?
  
• Did the Vex terraform Nessus and THEN proceeded to kill it all in some twisted experiment?

Or was it an oversight by the writers?