What is the best comparative reading of the conclusions of the two surahs?

Supplementary Practice 25 — Comparative Rhetoric of Sūrat az-Zalzalah and Sūrat al-ʿĀdiyāt

• Az-Zalzalah hides deeds and al-ʿĀdiyāt denies divine knowledge
• Az-Zalzalah covers every good and evil deed; al-ʿĀdiyāt closes on divine awareness after inner disclosure
• Both conclusions merely compare the speed of horses
• Neither ending contains an assertion or rule