As far as we know, Iran failed to send satellites in space; the US, but probably other countries too, are worried it succeeds in doing that for military reasons. Sending humans is a totally different story, being largely useless and super-expensive to do (and also risking human lives).
What puzzles me about conspiracies is that when one starts accepting crazy stories, literally any story can be made up contradicting any other... for example, how do we know that a fake astronaut suite is part of a misinformation plan to actually hide the fact that they are succeeding in their project but want to look weak? How do we know that in reality the Earth is round but the CIA created the Flat Earth theories to hide the fact that they know it? How do we know that we know what believe we know?
