The only time I have found myself missing Volley is Lei Shi - Hide ability. She doesn't trigger traps when stealthed from what I can tell and flare obviously would be broken if it worked. So not having ANY ground target aoe to bring her out is kinda painful. I don't care if it did 1 damage per tick =/
I play a shadow priest as alt, and one of the things I find the most boring about them is mind sear.
I'm glad that multishot is a somewhat maintained aoe, that you actively need to control for optimal results.
I remember when they removed volley. I was sad to see it go. Do i want to see it come back? No thank you.