Clearly this particular Technicolor reference is wrong for that shot. In the pictures from the Senator screening, which used a different Tech print, it had a pale blue sky and was not overly bright.

(insert standard disclaimer about photographs of a projection screen not being completely reliable)

Editing to add: remember how Harmy’s 2.0 was very bright and washed out in this scene? That print definitely has some errors on it, which also included two shots of the lightsaber duel being ridiculously blue.