In what way is the term "service facade/interface" overloaded? I've never encountered confusion (or been confused) by its usage in the context of discussing software development.

On the other hand, "port" is already completely overloaded: serial interface, TCP socket endpoint, etc. Further overloading it - particularly when there is a widely used term for the same thing - makes no sense.

Reinventing terms for existing concepts does nothing - in my mind - to advance the state of art.