Because I compared mine 2015 with pictures from the 2013 CX5, there are differences. The addition of a u-shaped metal bar on the bottom of the top plate, there is no way you can remove the top plate without removing the bumper. You are in no position to challenge me without looking at the 2015 model.
There are five rivets in 2015 compare to the 2013 there are only three. There are differences, I am just trying to point out that there is an easy way without drilling and without removing the top plate. If you feel offended because you did the hard way, that's too bad.