Frost stats keeping for rewards

It took me killing over 90 lvl 55 gnome armies today inside Frost just to get the final 44 count I was needing for the 400 lvl 50 or above gnome army kills reward. That's just crazy how bad your game was keeping count of something that has a specific number you must reach to gain the achievement rewards. Not to mention all the extra wasted AP it costed just to get what was supposed to be 44 gnome armies but instead ended being double that amount I had to kill just for the game to give me the 44 count. Do better!