I mean just think of the possibilities.
Hashirama would use mokuton and she'd make millions of paper bombs out of it on the get go.
She is is a bomb lol
She'd just go places and blow up and not worry about it because the jutsu would reanimate her, and she'd do it again and again and again.
And I think Kishi just limited her because her ability is just that good; imagine if it were combined with shadow clone jutsu? phew.
I mean just imagine her in the forest where all the ninjas were fighting, she'd be making paper bombs from trees here and there and all over the place or even trillions of paper needles. What makes her powerful is the range of her ability. A person that can control those many paper bombs (as seen with obito), goes to show she's quite a force.
Personally, I like her ability because it's quite unique, but I love Tsuchikage's ability the most. His ability is pretty amazing - Oonoki, I mean.
[video=youtube;IFlqiP7Cw_o]https://www.youtube.com/watch?v=IFlqiP7Cw_o[/video]