Why does the circulatory system include the kidneys? Why does the brachial not split into ulnar/radial? Where are the hypogastrics or profunda? Why does the aorta go directly into the brain? Why do the carotids go out to the shoulders?
But he is no longer man, and that could very well be the intention being depicted here - it clearly looks very inhuman around the bones along with other respects you mentioned.
Your very criticism could be the point being made with Dr. Manhattan here. It could also be that there's no need for him to put himself together in what we would see as "the only way", since he sees all possibilities.
He is a fictional character. He is not at all bound by the rules of logic, that's insane.
No, you're just grasping at straws to justify ignoring a terrible mistake on the part of the artist.
Dr. Manhattan canonically still has the same skeleton and such. They never said in interviews such mistakes were intentional breadcrumb spreading; he's a deconstruction of a human with godlike powers and that's addressed with his thoughts, not his skeleton.
It's an artist's mistake. What have you got against people pointing out an artist's mistake?
I'm saying it doesn't have to be an artist's mistake though. It very well may be, and it's your right to argue for that. As art, it's my right to say you may not be right. You have no idea, I have no idea, the writer could very well have seen the art on the panel and made a smug comment.
Quite frankly, Dr. Manhattan being a now cosmic being experiencing all parts of life simultaneously - he doesn't need to reconstruct himself the way a human does. He is literally no longer human, why would he be bound by the same rules?
The kidneys are pretty important to the circulatory system, I think in this it makes more sense to include them than not. It is a comic book tho so I'm not expecting any scientific accuracy