This bothers me.
Why the deception? Was film really that expensive? Just capture the footage both ways—as in, actually capture it—and see what works better in the editing room? What's the harm in trying it? What if the actor is right?
I'm okay with the director getting the final say—someone has to make a final decision eventually—but you should be open to other ideas form your team.
(Disclaimer: I haven't read the article.)