Will other channel spells have similar mechanics, like arcane missles.
Every other heal can be cast without facing the target. I used this a ton when I was on a crappy pc and we just entered kara (the stairs to moroes killed me). Every other damage spell does require you to face the target, this is true (besides dots), but they are talking about the healing portion of it, NOT the damage one.
Still seems odd to me. In a BG or raid or whatever a friendly target can run behind you just the same as a hostile target, if they see the need to change the way one spell works why not the other. In my opinion both aspects should work the same.