وَقَدْ يَأْتِي لِتَقْوِيَةِ الْحُكْمِ وَتَقْرِيرِهِ فِي ذِهْنِ السَّامِعِ دُونَ التَّخْصِيصِ
Fronting may reinforce a judgment in the hearer's mind without restricting it.
This is the central contrast. Restriction identifies one referent in opposition to a competing referent. Reinforcement (taqwiyat al-ḥukm) strengthens the attribution itself, without necessarily excluding others.
When no rival agent is in question, interpreting the fronting as exclusiveness can misrepresent the speaker's intended assertion.