domination scarab of terrors + unique monsters are possesed map modifier doesnt work

so as in the title i have around 10 shrines in my map with a atlas boss ( unique monster ) but they are not possesed. the actual map boss is tho. but d. scarab of terrors says modifiers to the final map boss also apply to tese atlas bosses.

it works with the atlas node that makes them affected by whisps if there are 50 or fewer monsters remaining.