From what Weekes said about Hudson's writing process, Indoc theory is not correct. The ending we saw is what was literally intended. And I strongly doubt they will be retconning indoctrination theory in. in fact i doubt they will retcon anything... my guess is that they will just tack more content on to provide more closure. even if you don't have a problem with the events of the ending, they left a whole lot wide open. who knows what the hell happened to practically everyone but the handful that made appearances in the cinematics.
I also believe they intend to have some DLC dealing with the garden world and the crashed Normandy, I think they'll weave the outcome of that into some kind of fuller ending.
His helmet was stifling, it narrowed his vision. And he must see far. His shield was heavy. It threw him off balance. And his target is far away.