Heretic achievement - wrong text

Unless something changed (I haven't been in this map in the Fall of Oriath), the boss of the Residence map (I suppose this achievement is about him) is named The High Templar, the boss of the act III is Dominus, High Templar, while achievement says about killing High Templar Dominus.

Also it can be misleading for new players, even if name would be fixed. Maybe something like "Kill the Residence map boss - The High Templar" would be clearer?

The map itself is too hard for my character, so if somebody would be there, please confirm the name of Residence boss.