You only have to look at the Apollo 11 conference to see that not one of the team had been to the moon.
... or, more likely, to see that they had just emerged from a three-week quarantine, and had not yet been with their families since leaving for the start of the mission.
They didn't mention the VABs even once during the conference when the belts are the No.1 NASA given reason why we can't get into deep space today.
Van Allen's instrumentation went into space on NASA rockets. The only reason you know the VABs are there is because of NASA, yet you cite them as if they prove some fakery on NASA's part.
Also, I think you're misquoting the "reason why we can't get into deep space" ... NASA has said that the Orion craft will need testing to ensure that its instrumentation will survive longer exposure than the Apollo craft had, but that's it.
Moore asks ; "could you see stars IN THE SOLAR CORONA"
The video author appears to miss the joke in Collins' response. ("I didn't see any") He was the only one not on the surface, and not doing the experiment concerned.
EDIT footnote
The astronauts said farewell to their families prior to mission start.
Mission start July 16, 1969, 13:32:00 UTC
Splashed down July 24, 1969, 16:50:35 UTC, transfer to quarantine trailer
Return to land, transfer to quarantine suite at NASA to begin three weeks of quarantine, until August 10
The press conference took place on August 12, long after the initial euphoria would have worn off
I think we can excuse them a little fatigue and weariness with the whole thing...