This was a problem before, and is DEFINITELY an issue now that thralls became even more “special” and you can lose hours of thrall leveling to an AI issue rather than player fault. Please fix the issue where thralls run into lava - they are not mindless robots, they should fear lava and stop following! And they should NOT EVER fall off elevators!!! Faulty AI has cost me 2 godbreaker sets Funcom.
This is a concise TLDR of my more ranty post titled: “Thrall leveling system is horrible, for ONE reason:”