As someone who mains a Titan, but has played Warlock and Hunter (my current Hunter is my 3rd Hunter, I kept restarting bc I got bored of his face): Yes, Sunbreaker needs a slight armor reduction. It, being a ranged super, should not have more armor than a Bladedancer. No, Stormcallers are ridiculously easy to kill as-is. They have less armor than a Bladedancer for sure. I've killed so many. Bladedancers can also survive a rocket. Having enough armor to barely survive a rocket is not new, nor is it OP. They can't be killed by one direct shotgun blast, it takes two or three, which should be a non-issue if you have auto-heal and any skill.