Uh, no GP's usage was fine. Take Collins dictionary: "If you refer to an express intention or purpose, you are emphasizing that it is a deliberate and specific

Uh, no GP's usage was fine. Take Collins dictionary: "If you refer to an express intention or purpose, you are emphasizing that it is a deliberate and specific one that you have before you do something". Perhaps you are thinking of the term "express written consent", but there it's the word "written" that means it was, well, written.