You are correct that flash loans are a part of the standard attack toolbox. This was not a standard attack though. It was a genuinely new attack vector that's

You are correct that flash loans are a part of the standard attack toolbox. This was not a standard attack though. It was a genuinely new attack vector that's not been seen before. Flash loan was just one hammer in the attacks toolbox. Remember anything a flashloan can do, a whale can do too.