I literally cannot stress how important it is that Gabriel is the one sympathizing or being understanding towards Omnics, a “minority” that he himself DIRECTLY fought against and defeated in wartime. This is REALLY BIG for his character and shows a depth that I think many fans knew he had/was capable of but had little to no canon to stand on. Now that he has this, it’s great proof that him and his later persona of Reaper are not “mindless hate monsters/machines” but individuals fully capable of agency, emotional reasoning, critical insight, and empathy. The fact that Gabriel is aware and implied to be supportive of a group - however extreme - that is fighting to claim their rights and stand their group is an indication that Blizzard is moving his character in a good direction.

I feel pretty firm in saying that “Reaper” is likely Chaotic Good-Neutral with hard views on himself, Overwatch/Blackwatch, “the conspiracy,” and the ability to believe that sometimes “the ends do justify the means.” This makes fan theories that Infiltration Reaper is “in on the plan” much more likely, and provides set up for a possible redemption arc Soon™ (Blizzard Soon).