It's fine, we don't have to have an argument but I'll just state how I see it. I meant with "technical perspective" to look at how the abilities work.
The only real similarity volley and scatter has is that they deal damage and involve multiple projectiles. Volley arcs out from your character while the other scatters bouncy projectiles from the initial shot's landing point.
The only real similarity the ults have is that they travel in a straight line across the map and deals damage. Unless they've changed it so that crystal arrow pierces through enemies... it's pretty far off.
Hanzo has nothing to do with ice and a character with a bow.. goes without saying.
One can make a really wide comparison between anything and based on some things say they are similar but in the end that would make a lot of things really confusing.
So that's that