All the other evidence aside, it's just too ridiculously convenient that the blooper happens during the only widely recognizable seconds of apollo 11, even the whole apollo program and perhaps all of NASA. "One small step..." is roughly equivalent to "For God so loved the world..." when considering the layman's knowledge of the respective sources. For the majority of people, this one sentence probably sums up their entire knowledge of the apollo missions. What are the odds that such an obvious blunder would happen at just the right moment and be the only piece of damning film evidence to survive a 30 year cover-up? It's the HB lottery, chance favors the Hb and hates the scientist.