Are you really saying that the Orville is some kind of time capsule from the 80's, untouched by the passing decades..?
Just watch it and see for yousrelf. For all intents and purposes it is. No, it's not going outright lo-fi like Kung Fury, but it's taking the stylistic conventions of the 80s and simply executing them with modern technology. You can call it more of an 80s revival in the same way Star Wars brought back conventions from the late 30s, the romantic swashbuckling style and the Korngold style soundtrack, but then added motion-control blue-screen photography.