I have thought that maybe it’s because the VP gain you received to tie wasn’t in your turn but during mine, as a passive action from the icon tower while I moved my vampire.
Maybe the game makes a distinction internally in case of draw depending if the draw was achieved during the active turn or by a retaliation (icon tower, retaliate from paladin or the wizard).
Maybe if you can’t kill the bots you are considered loser.
What were the corresponding messages for the other defeated players to tell about the position? Othrek, Bos5k and Gryth would have to have received something about 6th , 5th and 4th position, unless by some particular event two of them were sharing a position by tie. How did the game progress?