User blog comment:HELO/Indoctrination or Not, It's Problematic/@comment-3527219-20120402073352/@comment-3581090-20120403193031

Ha! The game actually gives you a time limit for the final decision? "Sorry, you're stunned inaction shows a lack of appreciation for this ending's genius: GAME OVER."

But, yes, you're right that, in a context where the Green ending is somehow a believable ending (and I want to clarify that I would never accuse you of defending it), it would likely only be able to work with Shepard's body providing the fodder for the blood magic--er, space magic.

Which, I will begrudgingly admit, would totally justify Harbinger's desire for Shepard's body in ME2--assuming he and the other Reapers were looking at Green Space Magic as a backup/alternative for their standard "we'll kill you so your robots don't kill you" plan.