Star Whale

I know a lot of people don't care much for The Beast Below and Vampires of Venice. I, personally, however, enjoyed the entire first year of the Eleventh Doctor very much. Why people disliked Vampires of Venice I don't know, but I have a guess on why people didn't care much for The Beast Below...

The Star Whale was an interesting idea, but my hunch on why people didn't like the episode was because of apparent flaws in the logic of the whale: how does it survive in space, and why does it throw up the Doctor and Amy inside the spaceship?

This goes back to a statement I think Jules Verne made about science fiction: It cannot be as such without scientific evidence to back it up. Truth be told: there is an explanation on how it survives. Perhaps it survives on atomic particles or asteroids. It may even make its own food by moving near stars and absorbing their energy, like a plant or algae does with our own star. It may even be partly heterotrophic (searching for food) and partly autotrophic (making its own food). Another explanation: the reason it was coming to Earth was not to help the people, but to find food.

Oh, and about the vomit?  If it really was a kind of whale, it would have a blowhole.  So the reason the Doctor and Amy weren't spewed into outer space was because they went through the blowhole and not out the mouth. Earth whales do not "throw up" out their mouths, but vomit from their blowholes. That blowhole was, possibly, connected to some part of the ship, and would expel the Doctor and Amy into a sort of storage area, allowing them to escape unnoticed.

That's what I think, anyway.  What do you think?