Hadith on Rukhsa: Why not take the Prophet’s concession?

Aisha reported: The Messenger of Allah, peace and blessings be upon him, performed an action in which was a concession. News of that reached some of the companions, as if they did not like it or approve it. The Prophet was told about this, so he stood to address the people. The Prophet said, “What is wrong with men who heard from me about a matter in which I made a concession, yet they disliked it and disapproved of it? By Allah, I surely know more about Allah than them and I fear Allah more than them.

Source: Ṣaḥīḥ Muslim 2356

Grade: Sahih (authentic) according to Muslim

عَنْ عَائِشَةَ قَالَتْ صَنَعَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ أَمْرًا فَتَرَخَّصَ فِيهِ فَبَلَغَ ذَلِكَ نَاسًا مِنْ أَصْحَابِهِ فَكَأَنَّهُمْ كَرِهُوهُ وَتَنَزَّهُوا عَنْهُ فَبَلَغَهُ ذَلِكَ فَقَامَ خَطِيبًا فَقَالَ مَا بَالُ رِجَالٍ بَلَغَهُمْ عَنِّي أَمْرٌ تَرَخَّصْتُ فِيهِ فَكَرِهُوهُ وَتَنَزَّهُوا عَنْهُ فَوَاللَّهِ لَأَنَا أَعْلَمُهُمْ بِاللَّهِ وَأَشَدُّهُمْ لَهُ خَشْيَةً

2356 صحيح مسلم كتاب الفضائل باب علمه صلى الله عليه وسلم بالله تعالى وشدة خشيته