I remember a funny story that Hickman did some years back while he was in the middle of the Secret Wars 2015 arc, I think. It was a one-shot or fill-in issue called Secret Wars Too. He was basically lamenting that he didn't know how to end it.
https://kotaku.com/one-of-marvel-s-b...ari-1743269178
It reminds me that big stories are often difficult to finish. There were a lot of loose ends in the Doctor Doom series ending, and I agree that after #7 it really started to feel rushed. That lead to a feeling that we weren't getting the whole story, that subplots were not resolved and characters were short-changed of their basic motivations in order to reach the end. I can see in this story how it probably had to end with our Doom destroying the other Doom, but the way it was done wasn't right. I can imagine that Cantwell was told he had to finish it by issue 10 because they were cancelling. At least we got some kind of ending, even if we didn't like it.
I thought about going through all the ways I think he got it wrong, but I'm not going to do that. We all have our own personal interpretation of what is Doom and who he is and what drives him. We are also subjected to the whims of Marvel editorial, whether we agree with them or not, and that's what we get. I don't think this version honors the Doctor Doom created by Stan Lee and Jack Kirby, enhanced by many other writers along the way, including Byrne, Simonson, Roger Stern, John Francis Moore, Brubaker, Hickman ... many others I'm forgetting. So, we got a story and an ending. Like it or not, Doom will live on.
ds