Okinawa for first time in Japan?

My partner and I will be going to Japan in May for our first time. Would we be missing out on the basics of Japan if we did Tokyo and Okinawa instead of Kyoto and Osaka. Or could we do all destinations? We have 10 days, I personally enjoy fast travel and could do Tokyo ~> Kyoto ~> Osaka ~> Okinawa ~> home. Has anyone done this or have advice to do or not to do this? I just think Okinawa looks amazing, great snorkeling, surfing and beaches seems like a good way to end the trip