Because she was teaching them about NON-FICTION texts. It wasn't about her feelings. It was about what the children were supposed to be learning from looking at non-fiction books, and the Bible doesn't fit the brief. KS2 children are supposed to learn about features such as:
Textual Features
Headings and Subheadings:
These guide readers to specific sections of the text, making it easier to find information.
Contents Page:
Located at the front, it lists chapters and topics, showing what the book covers.
Glossary:
An alphabetical list of important words and their meanings, often found at the back.
Index:
An alphabetical list of topics and keywords with page numbers where they can be found, helping locate specific facts.
Captions:
Short descriptions of pictures, often with labels to identify parts of a diagram.
Bullet Points:
Used to give a helpful overview of information in a clear, digestible format.
Bold Words:
Highlight important vocabulary, making the text easier to understand when skimming.
Quotations:
Used to include direct statements from people or sources to back up information.
Visual Features
Pictures and Photographs: Real images that illustrate the topic being discussed.
Diagrams: Illustrations with labels that show the different parts of an object or process.
Language Features
Factual Information: The core of non-fiction, presenting information that is true and backed by evidence.
Formal Language: Often uses precise and formal vocabulary suitable for an informative text.
Descriptive Language: Used to explain the subject matter clearly and effectively to the reader.
A KS2 child will already have covered some of these (children start to understand the way non-fiction texts are set out in Y1) and will be well aware that the Bible isn't suitable.