Right I get that he said that, but he's asked why haven't we been to the Moon again and he replies because we haven't been there. If you look at it logically he's just saying we haven't been to the Moon again because we just haven't gone there [again].
Or after decades of keeping a giant secret, he gives the big reveal to a six-year-old in an interview....
I'm going to give an old man the benefit of the doubt and and try to give him some context