Not sure I agree with this. The nova it procs dose well next to no damage and the knock back dose not seem all that powerful. Larger enemies will not be pushed away meaning you may just be left open to being re downed unless you have your action skill or Mindfulness Stacks built up letting you reposition yourself.
I hope they bring it up to say about 70% Amara has no innate damage reduction and this skill was one of her greatest assets while preforming the role of tank in a team.