Realize this: for anyone who picks up the Quran, it’s literally the way that Allah wanted to introduce Himself. Think about times you’ve met someone. What’d you do? Told them your name, and then usually you tell them about something that defines you - career, hobby, etc - something you’re proud of.
In the first part of the Surah (verses 1-4), Allah introduces Himself to us. (1) His name, that He’s merciful and compassionate, (2) He’s takes care of and sustains everything, (3) that He’s merciful and compassionate again, and (4) that He is the Master of the Day of Judgment.
If you look at these first few “sentences” of our introductory conversation with Allah, He keeps making reference to His mercy, compassion, and the fact that he lovingly takes care of and nourishes everything. Then he makes one mention of justice and accountability.
Thematically, the verse count goes Mercy 3 - Recompense 1.
In his first interaction with the reader/seeker, He’s emphasizing that His mercy is 3 times easier to attain than His wrath/accountability.
Finally, think about the Hadith Qudsi, “When Allah decreed the Creation He pledged Himself by writing in His book which is laid down with Him: My mercy prevails over my wrath.” (Bukhari and Muslim)