It would be good if they let her figure it out because while it's true that she didn't interact much with the Flash till the last episode, the last episode should make her think a lot. Like, didn't his body feel familiar when she hugged him? Using the same word "reckless" and then slowly, she should start piecing it together (blind when Dr. Light came. MIA after getting beat up by Zoom). But the show would rather make her dumb so that they can drag this storyline.