That's a really good analogy that the longest rollercoaster is 4 minutes. You're absolutely right that a months long interview process would suck. Fortunately, that wasn't what happened. I've added an amendment to the story to clarify, take a look!
I obviously can't go into the details of the feedback but I share your wish that hiring decisions would more cut and dry! It would be a lot easier for everyone.
Thanks for the feedback!