Why can the two rain reports not be classified by length alone?

Musāwāt and Ījāz al-Qaṣr: Proportionate Wording and the Rhetoric of Qiṣāṣ

• Because the longer sentence is necessarily incorrect
• Because severity is meaningful added information if it matters to the speaker’s purpose
• Because they differ only by an omitted verb
• Because musāwāt is always one word long