This game will evolve and change, it's inevitable. Sure it was a poorly designed encounter in most of the boss mechanics, also the weapons were from the beginning very unbalanced. But isn't this game all about moving forward? Changing the way certain things are done so no one thing is seen as more OP than the other? Changes are hard to digest, especially if it took away all the things you were used to, but it had to be done to balance out the game in general.