thats why you use it when you see they want to unload a chain on a target. moreover , ra consists mostly of nabs so it greatly speeds things up while it still helps keeping nasty physicals under control even vs a better team.
It kills newbs, but not the pros. A real pro doesn't attack through it unless he knows he can score a kill. Otherwise, he'll wait out the 12 seconds and only use something like Dev Hammer or Hammer Bash to knock down foes using devastating skills or spells [like Shame, Diversion, etc..]. I'd personally rather use Faintheartedness + cover-hex combined with enfeeble to completely nullify warriors and other physical dpsers.
I like to run CE / IP / defile / rip. You can rip + CE attunements / aura strait away from eles, IP is good for sins and axe warriors and when you play against hammer warriors you pretty much add enfeeble onto your bar for free.