Bespin Droid galactic challenge not counting slkr stuns

One of the feats for the galactic challenge is attempting to stun an enemy 30 times. 
The challenge is not counting the stuns from SLKR. 
Have attempted multiple times with a counter in hand painfully playing through the challenge for the full 15 minutes every time. 
reaching a stun count with just the poke ability from slkr of over 56 in one battle! JUST THE POKE 
(How was this achieved: grievous removes so much turn meter that slkr becomes invincible, everyone will die off eventually with just grievous and slkr left, keep stunning him, once he gets low just use basic and let grievous heal back up, don't use swipe, then repeat.... painful).
Fix your game CG!