It's just ridiculous. I know there are tricks like disengaging through mobs to fire back towards the group, I do it. But that doesn't change the fact that this ability is stupid. When questing it's a complete ****ing liability and in dungeons the risk of it grabbing extra packs is going to make it mega dangerous in Mythic+. My guildies don't even get mad in heroics - they just laugh when they see it randomly shooting at mobs who are 40 yards away, round a corner and out of combat. They won't laugh in mythic+. It's arguably worse than Starfall used to be back in the day and they ended up getting a glyph to make it only hit targets with moonkin dots on. I feel like we need an OPTION to make it only shoot at vulnerable targets. Or make it so that it can't target mobs which are out of the current combat.
Perhaps we could appeal to Blizz using class fantasy, seeing as that's what's governed most of their changes to classes... It's hardly good class fantasy for a marksman / sniper to run in machine gunning an entire city block. We're snipers not 1920s gangsters.
I love MM and I love the concept of barrage but it's just so fricking annoying to use. Either it needs changes in mechanics or AMoC needs to be brought up to its level properly so we have a genuine choice.
And no, please don't just do the usual drive by "l2p" responses. Yes I am well aware of how to avoid issues with it, and do, but that doesn't change the fact it's an awkward ass ability that doesn't need to be.