You misunderstand, if there is AI in Andromeda the ME3 ending becomes recontextualized. There never was a good reason to go with the RGB choice other than being a loser to the antagonist and having no choice, peaceful coexistence was possible.
The artistic integrity of the writers demands it to have more meaning, or at least remain ambiguous, it wasn't intended like a Saw like scenario where you get to pick three ways to screw shit up by some mad antagonist.
So that presents a bit of a writing problem, curious how they will solve it.