It wasn't the length of the stick part I was talking about, it was the top part.
Look at this comparison one more time:
Even ignoring the curved parts, the leak is also noticeably missing some features of the Uprising design. For example, her staff in Uprising has a red gem that is present on it, but isn't seen in the leaked images. It's not like they took the Uprising staff and made it smaller, it looks like they just simply took it right off the Brawl design (Though as SNU pointed out, the curved parts do look a little smoother I guess).
I just find it strange that Palutena in her playable form would be using an out-of-date design while a background element of her is using her most current appearence. It be like if, for some strange reason, Sakurai decided to make Mario look like what he did in Melee, and then have a stage in Peach's Castle where one of the portraits is a original picture of Mario in his Brawl/Wii U/3DS (Basically the same besides color) form.
Indeed.