I saw it last week, I think it clearly shows how impossible the whole scenario was and how Jonah MUST have been suffering from some kind of schizophrenia and paranoia.
The fact that nothing happened to Ninivah clearly shows there was never a judgement to start with, other than in his mind. And then he MUST have had hallucinations of the plant growing and dying from dehydration or something.
He could not have survived in a fish for 3 days without food, air or water.
It was sad to see so many people around the venue, take it so seriously