User blog comment:LokiIsAwesome/Agravaine and a few other Series 4 characters.../@comment-3012002-20120813102330/@comment-5102537-20120813122138

The above post is mine, thought I was still logged in.

EDIT-

I forgot to mention that Agravaine was used as a tool. He was the one who helped Morgana killing Uther. Aside from the fact that I think killing Uther off was the worst idea ever, everyone else could have done it. There could have been multiple ways to make Morgana kill Uther and to have someone helping her or doing it herself. So Agravaine served his only purpose by killing Uther.

Arthur choosing family over friends didn't make sense whatsoever because he had always chosen family over friends. He barely listened to Merlin or to Gwen or any other but did what he thought was right, for his father and for Morgana and for himself. He has never been really troubled about this. And ignoring the most obvious facts about Agravaine, since Agravaine was the ONLY one left who could be the traitor after Gaius was released (it was as simple as 2 +2 = 4), made Arthur actually appear to be stupid. When there are only two people who could have known about the plans (Gaius and Agravaine) and Gaius evidentally wasn't the traitor, then only Agravaine is left. But Arthur didn't see it? That wasn't choosing family over friends but simply idiocy and I don't understand why they made Arthur acting that way.