HS - Fantasmic and TP

I am a bit confused on Fantasmic scheduling. I see that for June 3, it starts at 9pm, but the park closes at 830pm that night. Does that mean unless I have extra evening hours that I am not able to attend Fantasmic? At least, that is what my TP is saying…“First showtime for Fantasmic! occurs after plan finish time. Please extend plan hours or remove the show.”

I find it hard to believe Disney forces you to stay on property to be able to see a show on a certain day. Is it just a TP limitation and I have to extend the hours, or is it true we will have to leave the park and not see the show?

I think it is usually schedule after the park closes. You will need to be in line way before it starts.