That is what I take as the meaning of Impact. It is not what Ingo told me. There's a fine line between "Impact" and "Purpose". And although I view it as the purpose of the patch, the line itself does show an impact of the patch. But to find the Impact, I must first look for the purpose.
I can say, the impact of that patch is the prevention of false warn ons. There is a very subtle difference between the two.