Then he stops healing me.
I don't want him passive, I want him to stop aggroing everything in sight.
I'll pop a group, CC a couple with Whirlwind, then start attacking the others... Talos will break my CC by attacking, then he'll run over and aggro a completely different group, so now I'm fighting 6+ enemies that are 2-4 levels above me, getting me killed.
What's the point of running with a healer companion when he's causing me to take way more damage than he heals?