I am sure they are considering making the banish bosses not stunable.
Then we will see if it brings more balance to the game.

I play in a realm where someone with 24 mil power ranks 6th in Banish because he actually takes the time to change formation and uses the boost.
I am inclined to think that others are not doing this and thus are responsible for gaining less coins and credits than they could.
They too can gain a lot, if they just put in the effort.
Bigger banish does however benefit all players. Even the once who do hardly any damge get more rewards.


On a sidenote;
If shayd starts doing damage like QueenB I want my investment back.
She still has days where she can't stun sand in the dessert and only her damage makes up for the enormous amount of misses.
She would be useless if she has damage like QueenB; average 8000 a hit.