Troubles in Sogun's Lament

[Nerien]

So, I've been doing the 4 for a while and I noticed on Iruga, that when the shadows spawns and I pull my Thrall, they aggro on it right away, any one knows why or a way around it?

It's kinda annoying because I need to tank 1 hit with Quell to be able to use 1 knockdown and even after I hit the shadow, it just keep going straight to my thrall.

[Varaka]

remove taunt skill from your Q

[Nerien]

But then I lose the stun on thrall and I need it for the double stun Shadows