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.
Fridge Brilliance: If you think about it, the change of narrative styles (First person in Pink Personal Hell and Third Person in Altering Fate) makes a bit of sense given the story's twist. The events of Pink Personal Hell act as In Medias Res to Altering Fate. It can be interpreted in a way that the Two Lines, No Waiting is Nickel Steel thinking back to the few week(s) before he went to Ponyville from his perspective - his "Pink Personal Hell" so to speak. It might further cement him as an Unreliable Narrator, focusing moreso on the Pink Personal Hell than what happened outside of it - he frankly doesn't want to remember.