Good luck with the legal work required to patch up Google's physical infrastructure than spans, literally, worldwide. For example, if it owns a cable (or just wavelengths) that connect Asia to Europe, how would you handle that ? It certainly doesn't comply to US territory regulations. Unless of course I'm mistaken which is very likely.
An undersea cable will have to comply with the regulations of the connected countries. A regulator can just come and disconnect the part that runs through their jurisdiction if laws are broken.
