It's garbage in the sense that you are losing more than you are gaining, while wasting a talent point. Your Lone Wolf rogue almost certainly isn't as valuable as TWO non-Lone Wolf rogues would be, or a rogue and a mage, etc etc.
Honestly, I think the solution should be a change to enemy AI. If they CAN aggro to a new target, then they will. Otherwise, they should start looking around, trying to find where you went. Or casting healing spells. If an enemy can't find you, they shouldn't just stand there idly pondering life.
