In light of the upcoming disclosures to be presented by Steven Greer which includes a massive cover-up (by NASA?) of advanced technology that has been used but withheld from humanity, it no longer seems far-fetched that there may be lunar space stations, but not in the fashion that is presented to the people by NASA; hence the confusion and lack of certainty. The astronauts are told not to tell-all and maybe that is why they run away when approached with "moon" questions.
Occam's razor nonetheless remains a useful tool for trimming the fat off of bulky assumptions, at least in our day-to-day lives. "The universe is a complicated place, but it's sometimes made more complicated through the invention of complicated explanations that suit a particular ideology, philosophy or political persuasion," McFadden said. "Occam's razor tells you to forget about all of those."