وأما تقديمه فلكون ذكره أهم
Preposing it may be due to the greater importance of mentioning it.
In many Arabic nominal constructions, a subject first is simply the normal order. Its presence before the predicate therefore does not automatically entail exclusion of everyone else. Nonetheless, where alternate arrangements exist, the speaker may choose the initial position to make that referent especially prominent.
«زيد قائم»
Zayd is standing.
«قام زيد»
Zayd stood / performed the act of standing.
Both can describe standing, but the first presents Zayd as an initial discourse topic while the second begins with the event. The rhetorical difference depends on contextual expectations and should not be inflated into inevitable exclusivity.