Don't really know why we're arguing about the NEZ shitters. Just saying that our NEZ is similar to ISU's SEZ in that neither have concessions or restrooms. Yes, fans do have access to the concessions/restrooms in other parts of the stadium, but without a connected concourse at the top of the section (i.e. sections 9-20), it's likely much more inconvenient (I don't personally know because my seats are elite). Maybe some view it as inconvenient to have to exit the stadium, walk up and around a hill, and then reenter the stadium to take a piss or buy a dog. That's just me.
Likely, this is why the AD made it such a big priority to connect the NEZ to the rest of the stadium via 360 concourse.