This is an express change in NEC4 compared to NEC3. If you look at 73.2 it now states that "Contractor has title to materials from the excavation and demolition unless the Scope (new word for NEC3 Works Information) states otherwise. That is a switch from NEC3 that said the Works Information had to expressly state that the Contractor has title to such material.
This is specifically for demolition and and excavation. It still remains the case in 73.1 that "the contractor has no title to an object of value or historical interest within the site. I guess there could be a potential grey area where the two overlap? You would like to think though that with common sense (dangerous assumption) in the most part these would clearly fall into one clause or other rather than overlapping.