Considering this is almost just like what happened in the Eclipse, it's pretty obvious what Oda's doing.
That being said the problem isn't even that he's blatantly taking pages from that book, it's that he always does the same shit with these flashbacks but now it's even worse because instead of just killing Ginny he had her be raped for years (and by the ugliest fucks on the planet at that, not that hot people raping you makes it okay though, but still) and the baby carried her illnesses.
And it's like, will he ever write another good female character?
One that serves an actual purpose besides just being fanservice or fuel to someone else's trauma.
And honestly I think the answer to that is no. Which is why I'm dropping it.
No idea why people can't respect that decision.