Merlin and Arthur having a long time to work out the consequences from a reveal

This. Though I was always braced for it never happening, kind of like Smallville had the "we're gonna stop before Clark can fly, because then he's Superman and this is about him before Superman", I was always hoping. And considering the amount of time Arthur has been kept in the dark (though, he really should have figured it out a thousand times over), it feels like the fallout should have reflected that.

Sigh. Mostly, I think, I'll miss Colin being fantastic as Merlin, Bradley's awesomeness aside.