In this case, it's the "application programmer" who is asking the "infrastructure programmer". Also, there's a difference between limiting scope and rejecting

In this case, it's the "application programmer" who is asking the "infrastructure programmer". Also, there's a difference between limiting scope and rejecting it. People are going to walk across the street whether you paint crosswalks or not. If your infrastructure fails to accommodate a present need, people will just work around/against it.