But this wouldn't impact anyone who doesn't want to use the feature, now would it?
By that logic, why not have an optional god mode programmed into every game that can be accessed on a first playthrough? Not everyone would use it, so why not?
Not having a NG+ isn't forcing you into a certain playstyle. It's forcing you to have
a playstyle of your own rather than allowing you to walk into every situation knowing that you're an unstoppable juggernaut who doesn't have to plan or think ahead.
Besides, there are probably trainers out there that can give you stats and stuff like you have at the end of the game.