The Trade Federation has slowly been taking control of the frontier worlds on the edge of the Galaxy. These worlds are too small and out of the way for the Republic Senate to care.
When the Trade Federation attacks Naboo, a big player in the Senate, this is seen as a declaration of war with the peaceful Republic.
In the ten years between films, multiple clone wars have been fought against the Trade Federation, who have now become the Separatist Alliance.
Episode II’s opening bombing could be recontextualized to be the Separatists’ first attack on the capital, showing that they are becoming a much larger threat. Padme was specifically attacked because she was the ruler of Naboo during the first film.
This would also add a motif to the trilogy of revenge.
THIS is literally the concept that my edits revolve around, I got clips and stuff coming soon