Yeah that end point is what I don't understand either. Why can't everyone just win here? I mean players looking for a challenge are getting more and more taken away when it could just stay in the game as an on/off option.
People that don't want the actual additional difficulty play without it, and those that do keep it on at the start of the game. Boom the more casual side, and the side that doesn't want a breeze through the story wins, everybody eats.
Oh the destiny bond topic there's immersion. It's like if in Elden Ring in every boss you had an auto win button. Sure you can choose to not use it, but it really breaks any depths when you know at any point you can just cheese and proceed. Giving you complete control of a situation like that removes any threat and any accomplishment of winning, since you always have this "auto win" in your backpocket at the shields prevented that, at least my take. Regardless, I still think keeping it as a toggleable option is the best instead of removing it.