I wasn't speaking about aoe from unholy or cleave damage, that damage is more then fine in M+ also if you know how the mechanics of your class function. I don't need dnd to do plenty of aoe, it is often so that you rotate dnd and dt and wounds between packs.
If i wanted to just go for pure aoe fun, i would play my DH what has again a more interesting mechanical toolset then frost, short aoe burst cd's and a team/raid wide damage reduction cooldown. However there's no reason to go to frost to do mythic+ other then the fact that it's easier to maintain a consistent damage through output.
If you want to discount army you better also discount fury of sindragosa from the equation or let's start removing heroism/bloodlust also etc, if you want to play that game
, Believe it or not 800 to 900K nearing 1M now are numbers i can pull and what i have at the end of a fight, since every good player know looking at damage meters during combat is a damage loss, also should become more consistent once i manage to get my crit back up to 35% again.