It isn't like saying that at all. It would indeed by wise to reject a hypothesis that was founded on a lack of information, or a distortion of information, and that is precisely what happened with the position on Iraq's WMD capability., very quickly. There are, just as a brief reminder, a large number of Iraqi Kurds who can testify to Saddam's possession and willingness to use chemical weapons, so WMD claims weren't entirely fabricated out of thin air like, for example, the claims made by moon hoax proponents.
The scientific community's examination of actual lunar evidence, with verifiable provenance, is not the same thing at all.