The author too is putting quite a bit of wasted effort in forcefully turning the shield hero to the way he is in the original story. It is good that his personality is consistent to the other story; but this being another timeline and another world altogether, some lack of consistency isn't going to hurt anybody; In fact, it might actually enrich the story even more, given that we see the world from Motoyasu's perspective. Then again, like I said, stuff sells better if the audience likes something related to it already. They want a continuation, or something resembling. They want the same protagonist, with the same side characters( especially girls it seems, for instance Raphtalia). Much to the author's pleasure ( because of the ease). Just think of it, many people die, and we don't care. We only care about who we know, and that too, to different extents, depending on their relation to us, our trust, and our personality. In the current world, the shield hero knows no Raphtalia, and hence her existence is immaterial. I doubt there is such a thing as "Your fate is bound"; were that so, Motoyasu would never be able to terminate the looping. Motoyasu doesn't remember either; so it shouldn't matter at all. In the current world they have no relation, and unless Motoyasu remembers it, and takes some action, she wouldn't matter anyway. Also, she may fall in love with Motoyasu, if he were to help her. But I doubt the author would choose that route- again, because of the damn "audience". The gist of the two paragraphs is, there is no such thing as "fate". If there were, there wouldn't be anything for anyone to do. Nothing right, nor anything wrong.