Yeah I've known about the V1 release for a few weeks now.
I have my own thoughts on AGL, but it comes down to sustainability and overhead. Halo is the highest costing competitive game to run in a tournament out of any game. 8 monitors, 8 mix amps, 8 Xbox, a router, 8 capture cards, a PC that can run and render that many, that many HDMI cables and splitters, stream overlays, web cams, microphones, audio mixer... And I'm probably forgetting a lot.
I feel like I talk in circles a lot with you about competitive titles, what it takes to run an actual tournament with them, and how involved MS and 343i are with the competitive scene.
Also, we don't even know how the Virgin Gaming deal could shape the future of tournaments.