These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Big Lipped Alligator Moment: The scene with Kay and Herne the Hunter, in which they change into various types of animals and are chased by larger, predatory animals. The animation is quite nice, but it has no connection to anything that comes before or after, and does not advance the plot in any way.
Also, for all the build up and pomp it is given, the Posset ends up being of no significance at all. Not quite as OTT as many examples but stil qualifies on the total and utter irrelevance it has to the rest of the story.