Abomination map boss has glitched damage?

So, i was running Fortress maps, not a single death in like 50 maps. Then i ran Abomination map, and almost every time i am at 10-12% exp i get oneshot by boss, either by one of those 3, maybe Doedre explosion, or Trinity slam. Dont know what is the deal, i even upgrade my gear, got almost double phys max hit, added Sand stance with 19% less damage with hits, got 5 endurance charges all time, and just again- i got oneshot while i was fighting doedre, shav and Maligaro by some explosion.

This is my setup https://maxroll.gg/poe/pob/1456u503

This is my setup, why i get random one shot if even map mods have almost no serious damage mods? Im like super tanky and yet i get one shot like 3k life Tornado shot build.

These are the map mods where i got one shot by boss https://imgur.com/a/YAsxNTP

Seriously GGG, if someone plays tanky build, he should not get one shot.

+ on top of that, yes i did destroyed pillar that gives increased damage debuff on me.