Perhaps we're now talking at cross-purposes then?
Going back to the OP:
Both of these snippets seem to me to indicate that this isn't a discussion of mechanics, it seems like a question of character concepts and balance issues of magic characters.
What are the specific mechanics you think are the topic here ?
Perhaps I've given you an incorrect impression. I care very much how characters perform in their chosen niche, I'm also an optimizer and can even tip into power-gamer sometimes. I'm not
just here for a good yarn
I'm super happy to have a mechanics discussion, I just want things to make sense
I don't understand the point you're trying to make. Of course out of two Arthurs, the one with better gear will perform better. Are you saying that you think that of two Morganas, the one with better gear won't perform better than the other ? Do you think even the most powerful magic items make no difference to the performance level of pure casters ?