Exactly. Even though Jukebox is an assassin, this is what a proper tank should be built as. Not some brute with a bunch of health, but someone to can control aggro and force his opponents to face them, whether that's a good idea or not. But that's also what's going to be Arms Slave next ability; he did just level up from this rampage after all.

Taunting Target - Arms Slave becomes the sole target of any hostile Avatar Ability or Perk within a hundreds feet around him. Allies within this area cannot be targeted directly. Additionally, he will be alerted of when he is being targeted and by whom.