"In the video game industry, AAA (pronounced "triple A") is a classification term used for games with the highest development budgets and levels of promotion." https://en.wikipedia.org/wiki/AAA_(video_game_industry)
It should be obvious from this definition of an AAA game that 6-10 people in a small indie game studio can't make a game with 'the highest development budgets and levels of promotion'. It requires lots of $$$ and other resources, which an indie game company almost never has.
"Wisdom begins with the definition of terms." - attributed to Socrates