What is the effect of the language in Maggot Moon (chapters 1 and 2)?

Maggot Moon by Sally Gardner is set in an alternative dystopian Britain in the 1950s. The protagonist (and narrator) of the text is a young British schoolboy named Standish Treadwell, and critics often describe him as dyslexic based on the way the novel is written.
In chapter 1, the text consists of a series of repetitive sentence fragments all beginning with "What if." This lets the reader know that these are the narrator's thoughts, and the structure of the language in this section mimics how thoughts are often arranged within the human mind.
Chapter 2 is only slightly longer but is more interesting in its use of language. Gardner juxtaposes traditional paragraphs with one-line sentences and fragments that represent Treadwell's immature-yet-astute mind. Breaking the rules of language by using improper punctuation and sentence structure, the language in this chapter is somewhat chaotic. The organized chaos of the language allows the reader to glimpse into Treadwell's emotional state at the beginning of the novel.
From a content perspective, the sparse chapters omit any concrete details about the event Treadwell says couldn't be written down on paper. This creates suspense, making the reader want to continue the story.