if you spec BrS you basically lost single target if you don't you don't do even justifiable AoE... Feral is not good for M+. There might be people who have good success with feral in Mythic+ with some super AoE heavy coms etc...but objective truth is Feral is shit for M+ and Blizzard don't really wanna do anything about it. Maybe BrS baseline without charge system and on 30 energy would fix it but im not a designer. Energy based classes doesn't have good times right now without free cleave like Outlaw or Windwalker.
EDIT: Even if we would get Blade Furry like Outlaw because our damage comes from bleed we wouldn't have fixed aoe. So it is hard to "fix" it. Maybe something like Rip ticking in 4 yrd range from target so in good comps like, with DK we would be gods of AoE. Maybe
I bet it can be fixed.