That point is extremely nebulous, as the definition is...IIRC it's actually entirely undefined formally within the gaming space. You can also see this with the "AA" classification of games, which can be AAA games that look like indie games, and indie games that have the visual quality that's closer to what AAA studios make. This also implies that indie games are A games, but that's neither here nor there.
- Minecraft is pretty cut and dry, it's owned and developed by a AAA studio, so it's a AAA game now.
- Ori is a bit odd because it's developed by an indie studio and published by a AAA studio. I imagine in that case if you consider it an indie, it would be because they were allowed artistic freedom.
- Shantae is also debatable, as Wayforward is a well established publisher, but they aren't really a AAA studio when it comes to making their own games.
- Or maybe they are, what even is a AAA studio?
To try and answer that last question, I think Nintendo, Microsoft, Sony, Bandai-Namco, Sega, Capcom, Riot Games, Bethezda, EA Studios, and Activision-Blizzard all count, but that's probably not even close to being comprehensive. Going back to Wayforward, it's definitely bigger and more well established than most indie teams, but it's also not really comparable to the likes of Nintendo or anything either. I'd say studios like Level-5 are like this too, and heck, even Yacht Club might be there as well. Should we consider them AA studios? Does that make them not indie?
Honestly there's so many question marks, I'm not sure we'll actually get past "it's indie because the majority says so" on edge cases unless something bad or at least very noticable happens.