I think Stoute is subconsciously trying to justify why he ruined what could have been an all-time great rap group to hip-hop fans. He said that shyt on Drink Champs, a hip-hop podcast, so he knows its primarily heads that are listening to it. By going at AZ and Mega like that, what he's trying to get at is they were holding Nas back (which is bullshyt obviously). I doubt this type of shyt keeps Stoute up at night, he likely doesn't really give a fukk, but when he's pressed on things like how he guided Nas career and how he affected AZ and Mega's career he still seems to get defensive and lash out. Maybe he's also playing up that "I'm an industry dude who only sees dollar signs" character on some troll shyt too, who knows.
The good thing is Nas is his own label now so he can stay neutral if Mega and Stoute throw shots at each other publicly.