I think one of the key points is that the event's way of functioning (or DNA as the source puts it) gives rise to a certain set of key principles that "make" a

I think one of the key points is that the event's way of functioning (or DNA as the source puts it) gives rise to a certain set of key principles that "make" a specific event part of the family of events. If a rule isn't applicable because of the community to which it is being applied, this might be because that community wasn't considered, but it's equally possible that the event isn't right for that community to begin with without modifying the intent in such a way as to be a different thing. I do agree, however, that if something's not right you should try to fix it, possibly by creating your own thing... Horses for Courses.