Even if focusing on how Leia mirrors her Mom, like how Luke mirrors his Dad, was a good thing, there's one major problem. Padme has nothing to mirror, as she is not really a character. She was in the prequel trilogy for the purpose of eye candy, and because Anakin needed someone to have kids with. We're told she was somehow elected queen as a teenager, but we never see her govern. We're told she became a senator but all she does as senator is make Jar Jar senator so she can run off (err, hide from assassins) with Anakin. And then in Episode 3, all she does is make Anakin worry about her dying in childbirth.

There's nothing there to compare her to, unless they're saying Leia should just be a figurehead and then get knocked up.