Pancake Repulsor Effectiveness

I really wish the pancake was more accurate with the Repulsor. I went through abe entire match consistently knocking down shields and pancaking a spartan with a wall behind them and i find that it only counts when it’s directly in front of a wall on in the linear path of the wall. This is really irritating because if i pancake a player in the corner of a wall it doesn’t work yet it’s the same distance and has the same purpose.