The problem with it, why did Trump tweet that? Why'd he say Kansas? I'm pretty sure it wasn't because his tweet was technically correct. It was a mistake, even if, technically you could say that he didn't say they were in Kansas. It's pretty obvious he said it because he thought they were, and after being corrected, he fixed it. I don't think you're helping Trump by trying to make that defense. It's not pointing out anything of importance about the naysayers.
Why, because he is human, just like I never did think Obama thought there were 57 states. It was late on a big day, in truth probably not the biggest issue on the plate and a simple human error occurred.