What was the violent conduct that they were meant to be checking after the goalkeeper fouled Duk in final minute ?
Only thing I could see was one of the h*ns seemed to throw a headbutt at Duk but missed.

OR

Perhaps they are basically saying we are not giving you a penalty against rangers despite it being a penalty but to make up for it we are not sending off one of your players so Rangers win and we ( and rangers ) are happy and you don't go down to 10 men so should be grateful