Poor Things ending.... Why she didn't do that?

I was so sure that Bella would transplant Godwin's brain to the husband's body. Won't that make more sense? Godwin got to live (and if they could make him to gain back his memory). They got to take the general's estate and live a even happier life (?)

Even though I don't expect a part 2 but this would open the door to an interesting story on how Bella tries to restore Godwin's memories, to discover even more dark secrets of her past (like perhaps the baby was not her husband's). And Duncan trying even more tricks to get back at Bella, etc. Anyway, Bella was calling Godwin and Max monsters but she ended up doing almost the same thing to the husband.