The system - such as it exists on live (have not seen the blight changes) allows for very simple mob killing if you take along a lower-than-you level adult dragon.
The mobs flock to the small(er) dragon - who can then fly without losing agro.
Other characters can beat up the mobs almost with impunity.
This is of course completely stupid and makes a mockery of combat.
Like others - I like the fact that TG are looking to improve the PLing by changing mob behavior, but as we all seem to agree, it has gone too far.
Here's to hoping the blight changes fix some of these issues.
("wanting to group with low level adult dragon") - :)