Board Thread:Rewatching "Merlin" - Season Five/@comment-5102537-20140329115401/@comment-93.72.133.51-20140331175609

Perhaps, Merlin wasn't meant to agree the Disir regardles of situation, but the writers had to finish the series and that part was undeveloped. Perhaps, they had no place in the new world and new religion and Merlin have really grown up to making such decision but due to lack of time it was changed.

And about Merlin being shortsighted - I think it's rather giving in to his guilt or stress of the moment, as Gaius told "easy way", not arrogance or inability to consider outcome.