Paragraph 3 continues to bring this point our by saying "The caption noted a "huge rock formation...which resembles a human head...formed by shadows giving the illusion of eyes, nose, and a mouth."

If thats not enough to convince someone that its just a natural landform then paragraph 7 mentions that when Michael Malin and his MOC team snapped a 10x sharper picture of this formation, it appeard on a JPL web site that revealed it to be nothing more than a landform.