You are confused. In theory, for the purposes of this conversation in the way it's being carried out.
The key to your confusion would be apparently lacking an understanding of the word "but" and how it works in a sentence, though, which may be a bridge too far.
I mean, by that definition he's not wrong.
It's just that the way that works is indie devs become big enough to either become whatever the hell triple A means or get bought by whatever the hell triple A is.
Magicka was an indie game, I really struggle to fit Helldivers 2, a Sony-published sequel to a Sony-published game, into that same bucket. Ditto for Larian. Divinity OS? Sure. Hasbro-backed multi-studio Baldur's Gate 3 with its hundreds of millions of budget? Myeaaaaah, I don't know.
I think the real question is how you keep the principles that make indie games interesting in play when the big money comes in. I'm all for an indie-driven industry, but I'm a touch more queasy about a world in which major publishers use tiny devs as a million monkeys with typewriters taking on all the risk and step in at the very end (sometimes post-release) to scoop up the few moneymakers.