suddenly impossible to beat Artist of War Mythic???

The mythic tier is not challenging, it's irritating. I understand what they are trying to do, but it's not fun. I have sent an all g12 team in there and they are dead way too easily. It's not working as intended (Imo), it's just lame. What's the point of thrawn lead if the debuffs they land are daze or stagger? I'm not even sure it is working at all. Stop doing this please. It is just dumb and I'm not going to do it anymore.