though not exactly what the op is on about i would like it if my jugg had some sort of group pull, can be hard for him to keep agro on spaced out blaster mobs in HMFP
This is a situation all tanks find challenging.
OP: The defence/immortal tree needs some love to make it more attractive than hybrid, but other than that juggs are fine.
Having a hp skill would bring them in line with the other tanks, but really what would you want to give up for 3% more hp. The hp skills on assass/pt's are extremely uninteresting and provide trivial benefit. Your not missing out on much.