ONUP — Conformance Points appear to be contradictory

Section 8.1 on Mandatory and Optional Interfaces, and Section 8.2 on
Conformance Points appear to be contradictory - you should define what you
mean by "the entire set of specifications" as a conformance point. I'm
not sure what it means to say that you have to implement the entire
specification when some interfaces are "optional". i would take this to
mean that a "conformant" implementation might be required to implement
optional interfaces and throw "NO_IMPLEMENT" on every operation on those
interfaces. This should be clarified

See below