CorporalCaptain wrote:

I'm wondering whether it's no accident that the act breaks are falling on the animated maps.
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I suspect that's not intentional. After all, there's the map from Nepal to Cairo that doesn't fall on a break (or if you consider that the act break, the map of the flight from San Francisco to Nepal doesn't fall on a break).
As to why you don't see it in Star Trek, first, Raiders is homaging films and serials of the 30s and 40s, second, a map of space isn't iconic the way a map of the Earth is.