Maelstrom Area Igneous Cistern Bosses Not Getting Stunned

Logos

Had it happen on the infernal guardians and on Valkyn Tethra herself that when I killed their respective monoliths the bosses didn't stun at all, I could still damage them, but they didn't stun.

Logos

Oh, how funny, the monoliths don't actually do anything. I went back through again to see if it'd happen again and realized that you don't actually need to destroy the monoliths to damage the boss. This can obviously be easily exploited :P