«المكروه كراهة تنزيه: وهو ما كان الأصل فيه الحرمة، فسقطت لعموم البلوى كسؤر الهرة»
One form of makruh tanzihi concerns something whose original grounds pointed toward prohibition, but the restriction is lifted because of a widespread, difficult-to-avoid circumstance, as illustrated by water left after a cat has drunk.
Umum al-balwa is a general condition affecting many people in a way that makes avoidance unusually burdensome. The example illustrates a justified easing of a general concern.
It is not a blanket license to set aside prohibitions whenever an individual finds them inconvenient; the legal basis of widespread hardship must be established.