Inside a population center we have the technology necessary to create distributed networks between citizens that governments can't easily disrupt. You can't easily for example stop the flow of information to people living in a reasonable sized city with the advent of wireless networking technology. If people inside of a city or town want to run a darknet over wireless it can be done with off the shelf retail equipment and governments won't be able to easily shut it down.
But at a large scale, a scale that encompasses recognized geopolitical boundaries even as small as political regions inside of a single country, information systems are still centralized enough for an information kill switch to be possible. And because its possible, governments will consider it a tool to be used. Its just a matter of particular government particularities that will determine when and where a particular government will reach for the tool. There's nothing sacrosanct about Western governments that would prevent the use of a kill switch under any situation.
The only way to stop this sort of blackout is to figure out a way to build a global network that is truly decentralized in terms of infrastructure. And I don't see that happening anytime soon. Privately owned pico-satellites aren't a reality yet.