You say that, but I feel BG3 would be rather stand out if it embraced "rated T for teen" spirit of the IP. Games have been posturing and claiming how adult they are but adding violence, sex and prophanity for a while now.
Gonna have to remove a lot of blood, gore, and viscera to even hope of getting that T rating, and I'm sure lots of dialogue will have to be rewritten too. Also I can't imagine the spirit of the IP is "T for Teen" when bare tits used to grace all of the manuals and promotional material up until around 3rd edition. A lot of Clyde Caldwell pieces come to mind.
Edit: Also we can never forget the Random Harlot Table of AD&D