That would be good writing for once. And also the reason not to kill Pudding too quickly as she cannot read the poneglyphs.
The more I think about it, the more I think BB is going to fuck Imu up with the Yami Yami no Mi.
Imu is going to want to repeat what happened Rocks, but when BB uses his DF, all his Hax bullshit will fade away.
We don't know if Imu's ability is a DF. It seems a little too hax to be... gives immortality and regen to a large group of people, enables full possession of them and telepathy, you can kill previously"blessed" regardless the distance, then there's also domi reversi for your foes, what else... Not sure how elders have animal forms & can force teleport to a far away location with a pentagram, but it also could be Imu's powers. The more I think of it, the messier it gets, it's like Imu has some sort of black sorcery in a world where it actually doesn't exist.
If BB could really negate Imu powers, I would expect everyone who is "blessed" to drop dead that instant, because they're powered by Imu, and that's VERY OP for BB. I would like that, of course, because I don't like WG holy shits and elders as final enemies, give me my SHP vs BBP and Marines revolution.