I used to be a proponent of taunt working through armor, but the idea of enemies being able to taunt me whenever they want to terrifies me. Not because I don't get to use that char for the next turn, but rather because when you're taunted the scenarios play out like this:
*Magister casts taunt*; "Hey Ifan, I bet those elf babies loved that deathfog you put on them!"
*Magister words penetrate Ifan's leather vest*; "WELL F*** YOU, I'M GOING TO DRINK ALL MY POTIONS AND USE ALL MY SCROLLS THAT'LL TEACH YOU!"
I've had characters using all available AP point extending abilities like tea and adrenaline rush just so they can drink more potions. The list goes a third way across my 1920x1080 screen.
Sometimes if the AI is feeling whimsical it will use source points for the most retarded reasons as well.
For these reasons I see taunt as very punishing to the player and needs to be resisted by armor whether it makes sense or not. If taunt will remain affected by armor, there better AOE CCs I'd rather be using on the enemies anyway. So until they fix mad/possessed/taunted AI, they should just leave taunt in a ditch where it belongs. Loss of control of characters is probably the most frustrating thing in the game for me.
By extension the concept of a single tank doesn't really make sense in the current state of the game.
