New Boss Diamora: awful design

She only exists for about 3% of the fight time and the rest of the time she is invincible and flashing her boobs and we have to slowly walk in a circle while 5 white mobs slowly walk towards us. It's honestly one of the worst boss designs in POE history, reminds me of the Innocence fight that should be over in 15 seconds but takes 5 minutes instead because he is invincible the entire fight. Kind of blows my mind that someone designed, implemented and tested this and then said: "yep, put that in the game".