And here we are 11 years later with people cargo-culting all those things. I once overheard someone seriously suggest building a MVP for a game in an established genre.
As an avid gamer, I can tell you that early access games that are too early don't do well unless they're made by someone famous. Early access works well with games that are released in a semi-polished state - Hades is probably the poster child for a well executed early access.