The Arthur glaze is crazy!
"Arthur would've accepted Morgana's magic."
Have ya'll rewatched the show recently? No, he wouldn't. I'm sorry, but Arthur is a Pendragon through and through. He has only marginally accepted magic when it has serviced him.
When he found out about his Mother [S02E08], when he needed to save his Father [S04E03], when he wanted to see his Father [S05E03], when he wanted to save one knight (Mordred) [S05E05], when he wanted to save Guinivere [S05E09].
The only time Arthur ever had any semblance of acceptance for magic that wasn't self-serving was when he apologised to the ghost druid boy. And that was only an acceptance of just the druids, without any actual work towards true peace on his end. He just stopped actively killing people and called it a day [S04E10].
And an argument can be made that it's still self-serving, because it alleviates Arthur's guilt, and saves another of his knights (Elyan), so. Which brings me to my next point.
Arthur only accepted Merlin's magic because he was dying, and because Merlin refused to accept Arthur's initial response. We see him have the initial bad reaction, told him to leave, which is understandable. He felt betrayed, and he was faced with the thing that he's convinced is evil. But he kept pestering Merlin after that, making snide comments. And it's only when he physically has to stay next to Merlin (because he's dying) that he understands that Merlin's magic is okay, not that magic is okay.
Arthur would not have stayed still for Morgana, and Morgana would not prostrate herself before Arthur. Even when they were on good terms, that was not how their relationship worked. Arthur would have felt betrayed and scared, and said something hurtful to Morgana, and she would retaliate back. It's how they've always been.
And Morgana was never going to be of service to the crown. We see it from the start that she is against almost all things Pendragon, and macho masculine bullshit. She was never going to be a tool and use her magic for men.
There's probably more I'm gonna think about later, and there's definitely a lot I didn't add to this because I could not figure out how to word it, but here's my not well written rant. Feel free to correct me or debate me (politely, my gods, it isn't that serious).
