erm...
My mods don't even have a Construction Zone Expander...
This was a choice due to technical limitation of roboports only allowing the construction zone to function if there's a chest with the materials in it inside the connected Logistic zone. So I chose to only have the Logistic zone expanders.
Even if you were assuming you were to have other entities that connect to the logistic zone (like my robochests and charge pads) they need to have a small logistic zone to function, so I set mine to have a zone the size of their own footprint, so if you were to place those in the gap between zones, they would connect the two zones together. I'm guessing whoever added the construction zone expander you're using did the same thing.
And on an unrelated note... Please use linebreaks (press enter every now and then), long solid blocks of text like that are very difficult for me to try and read.