User blog comment:Ghmorello/Chapter 9/11: A Wano Girl That We'll Never Forget/@comment-83.84.172.109-20180712164714/@comment-24850639-20180712203208

One of the bigger differences here appears to be that Tama's fruit requires her to use her own body. Streusen could use his fruit on objects that he touched in some kind of way, and Kanjuro just needed a flat surface to draw the food item. Since Tama's food literally comes from her own body, I'm not surprised that there is some kind of restriction. Maybe it makes her much sicker than the contaminated water ever could, maybe it has an awfully repulsive taste like Streusen's food. Either way, you should know Oda better than to assume that he's going to leave plot hole THAT big unattended to.