The difference is it was through MLGs blood sweat and tears that Halo Esports was a thing. It's no surprised they wanted to treat it like their baby.
They also locked their own community out of updating their own community playlist. I wanted a set up where the actual MLG community would get to vote on and push maps up to the MLG playlist after MLG abandoned it, and all MLG had to do was give final yes/no.. they had zero heavy lifting to do ..all the final cert testing would be handled by CCs/343/Bungie (and that's all it'd be, just making sure the map wouldn't set a 360 on fire, no creative changes).. they didn't want to do it.
And there was actual demand. Forgers in the MLG community did exist and I helped them test their maps all the time. MLG snuffed that portion of their community out for no other reason than arbitrary ego bs. MLG being under the "Community" tab in Halo was a complete farce.
This was a night and day difference between them and the other "corporate owned" playlist in Halo, Grifball, where community content got in regularly alongside the official maps.
Instead of embracing and growing their community, they insisted on pretending they'd be the only game in town and that changes and direction would be top-down. I personally did not enjoy the later MLG settings but that community got screwed over by their own leaders. They pushed too far at the corporate level and now you see every publisher running their own leagues because it gives pubs more complete vertical integration and control over the public perception of their game.
MLG, on the other hand, has done a lot for Halo. 10 years of tournaments that were perfectly organized and that had great viewing experiences. Pros hardly complained and they worked very close with Bungie. Nothing comes even close to them, when we are talking about Halo tournaments.
And yet they still pissed it all away with their arrogant corporate governance. Wasting all your money securing 100% exclusive rights through brute force, crushing small comp leagues and arbitrarily releasing initial settings instead of organically figuring out where a game is going burned a notably sized group in their community. My ire is 100% aimed at their corp governance, not the community members that put in effort.