>>35589208CSC is a serious business that only works with companies and also assists with brand protection. A random squatter wouldn't be able or want to register a Pokemon domain through them. They would use another service (with less legal obstacles and cheaper price). The likely scenario is that, since the names leaked, they went ahead and registered it as a preventive measure and used their own contact information either for secrecy or simply because they felt the need to act on their own fast and paperwork was left for later.
You'd need some convoluted conspiracy theory to think that the domains were registered by someone else.
