The last people to acknowledge that an AGI is actually AGI will be its creators. When Garry Kasparov played Deep Blue, he saw within it a deep sort of human intelligence; insight that said more than the chess AIs he was used to. Deep Blue's creators did not appreciate the chess genius it was capable of, because they were not brilliant chess players. Under a microscope, a human brain does not look very intelligent. So too will the creators of AGI deny its real intelligence, because they know its artificiality and foibles more than anyone.