I would like to propose a new term: The Dinnibang
If you read Brandon Sanderson, you'll know the term 'Sanderlanche' - used to describe when all the little dominoes he's lined up through the narrative start falling over, one after the other, leaving the readers literally unable to put the book down.
Every DCC seems end with a complete descent into chaos in much the same way, and often times, there's an explosion. I think we need a term for it.
Hence, the Dinnibang.