Faridun Plaguebringer Mobtype feels extremely unfair

I have died a few times now to this monster and each time that it happens I can't even tell the monster is there because it blends in with other mobs too easily, or its offscreen. The corpse explosion that it does doesn't seem well telegraphed, and also seems to detonate extremely fast. Given that corpse explosions do so much damage because of the nature of their scaling, it just feels like complete bs. It feels like revanants from poe 1 on steroids except way worse telegraphing

Most the time I've died of this mob it's off screen. Or barely on the edge of the screen. With no telegraphing just a explosion of blood.