I don't think the criticism of God of War (the elephant man) on this basis is fair.
God of War is designed to shock the player with extreme violence. Greek mythology is not a pleasant setting full of rainbows and ponies. It's horrible. It's full of murders and genocides and sexual assault. Trying to sugarcoat it would diminish the setting enormously.
The brain is bordering on obnoxious levels of gore, but again, that's just what the setting is.







