The Ṣaḥābah did not trivialize sins at the time of the Prophet ﷺ

Anas said, "You all do ˹bad˺ deeds which seem insignificant in your eyes, like hair, while we used to consider those ˹deeds˺ as destructive during the life-time of the Prophet ﷺ."  

قَالَ: إِنَّكُمْ لَتَعْمَلُونَ أَعْمَالاً هِيَ أَدَقُّ فِي أَعْيُنِكُمْ مِنَ الشَّعَرِ إِنْ كُنَّا نَعُدُّهَا عَلَى عَهْدِ النَّبِيِّ ﷺ الْمُوبِقَاتِ۔