Aluminum aircraft go together more or less the same way. There will be some inspection panels but the interesting stuff is already exposed, there's very little reason to go inside the wings, particularly on a composite aircraft where corrosion isn't a problem. If you really need to see something, use a borescope.
You can see in the article that now no cables are in there during closing, they are in extra canals/tubes which can be accessed later on, be it for installing them in the first place or maintenance.
