I would say this movie is not perfect by any means. It truly marked the end of the model series (whole season 12 did that as well), and Spencer's reasoning for wanting Hiro destroyed is never explained in full. However, my biggest gripe with this movie is its narration. Every single action is narrated, when it can be seen onscreen! He never shuts up and lets the visuals speak for themselves. For instance the chase scene with Hiro would have been so much more impactful had the narration been cut out completely. Even a small child can comprehend what's happening. It doesn't need further explanation.
Thomas & Friends: Hero of the Rails
(2009 Video)
Too much narration
4 December 2023
Warning: Spoilers