As someone who's most used frame is Valk... Yeah other frames can get Warcry... but Valkyr can also get all the other abilities. No frame is truly getting invalidated since they can also have broken skill combos, just like any other. Not at all bothered by this. If anything, DE's got brass balls. I fully expected Rip Line or Paralyze to be the subsumable ability. As for "balance"... We've already got Sayrns and Mesas running around insta-clearing rooms. We have the Bramma which may as well have had no nerf. If anything, this lets other frames shine a little bit more.