Let suppose Default class get a lots of traffic and it occupy the empty video call space completely. Critical-Data is 28% used at that time.
Now Critical-data get a traffic of 40% and want to take space from Video but that space is already occupied by Default class traffic. In this case Video class space will get allocated to Critical-Data based on weight or Critical-Data traffic will get dropped.
In Online docs it is mentioned that default class traffic will allocated as per weight but what about other class sharing method.