Right, but accuracy with respect to reality is not the distinction between aphantasia and non-aphantasia, that's more about memory or technical knowledge than about the ability to visualize itself. Someone without aphantasia can also visualize fantastical scenes with no connection to reality, either because it is fully fantastical (dragons and dwarves) or not a real memory (imagining meeting with someone, but it hasn't happened yet for you to be able to recall). They could visualize cartoonish scenes or cel shaded scenes or animated XKCD stick figures. None of those are realistic, but they could still be visualized in detail.