Volitile Plants

Why are they so small yet so deadly. Chaos res is good. 5500es 2700 life 70% armor 75% evasion cap reses and one shot before I could see the plants or projectiles because the BOSS that spawned them is so large he hides them. I remember being told stuff like this will be easily seen so you can react to it yet every death I have is barely to no notice!!! Can they not be large and flash purple or something. Can something with a one shot capability be glowing red or something.... IS THIS NOT POSSIBLE YET IS THE TECH TO GRANDIOUS. Why after 12 years can we not know why we are being one shot while also being over geared this was just t14 normal map with a few mods nothing crazy.