Haha, you are right, that explains it. Although in fact it does not make much sense to let the network split. Maybe a bit like the internet, it can split when there is a major outage, or it might be considered splitted in China, but in the end it is "The Internet". But I see, this analogy does not work in every case, the internet was supposed to be one network, while lightning can work well in a closed "subnet".