The thing that really gets me, with eh Apollo hoaxers, is that they believe they were faked. yet, wouldn't Russia have been the first, and with all their might, to have proven it a fake?! What would they have to gain by allowing eh hoax to remain unproven?
Hoaxers really have to ignore a lot of facts in order to remain convinced of their position. The reason you gave is one of the 3 reasons that I give, that so far no hoaxer has been able to successfully argue against, on any of the other places I've discussed it (YouTube, Reddit, etc.).
1. Russia was watching and listening, and more importantly tracking, and would have known if it was faked. They were in an incredibly expensive race with us which the entire world was following. If they'd had ANY evidence that the landing had been faked, such as the radio signals coming from satellites instead of the CSM, LM on the way down, LM on the surface, LM on the way back up, etc., or such as evidence found by any of their spies which have been confirmed to have existed, they would have loved nothing more than to embarrass the USA publicly and show that Communism is better than our Republic. But they didn't do any of that, they behaved like a country defeated in the race to the moon.
2. 100,000s of people would have had to be in on the cover up, but even if it was just 1,000 people it's just crazy to think that nobody would ever have said anything about it. In all the years since then none of the people deeply involved that passed away had any dying words to clear their conscience, or left behind any documents about the cover up, nobody accidentally let something slip, no secrets were revealed by disgruntled employees, there haven't been a dozen mysterious "suicides" of people that were about to give interviews, etc. It's not a secret that could have lasted this long with this many people in on it.
3. Major movie studios, using state of the art special effects for the late 60s and early 70s, have made plenty of movies about space and moon landings. The effects all look horrible and fake and nothing like what we saw on the actual footage. Today the footage could have been faked with CGI like what is used in current space movies, but back then it just wasn't possible. The only way to get the footage that looks that legit, back then, was to go to the moon. They filmed this moon footage on location. Not faked.
Hoaxers completely ignore all that and come up with other "facts" to explain their position. Some days its more fun than others to debate them.