Soru Soru Fruit is absolutely disgustingly busted right after Ope Open fruit. That shit can do almost EVERYTHING.
Broken bones? No problem, heal.
Make yourself stronger? Take a few years off your life, no big deal.
If Oda allowed BM to use both ACoC and her full DF powers she would be fucking unstoppable. That is why he had to legitimately nerf her with CIS and PIS.