Its not easy to fix because if you think about it, it has to keep checking if you have those shoes on when you casted, it isnt a case of throwing in another icon. It will take up resources.

I just do not see the point in it, you just read it as "I have 4 or more", as like said ,it goes 4 > 4 > 3 > 2 > 1

If it says 2, you dont have 3, you have 2 because it still counts correctly.