Does not affect the uptime of Bitcoin. The only thing that affect the uptime of Bitcoin is power interference, the internet connection and the hashing power that solves the block continously. As long as these factor is present, regardless whether the electriciy covers only a small part of the world, the Bitcoin uptime will continue.
That said I believe you are talking about the accessibility and not the uptime/operation of Bitcoin network.
Yes, it is highly likely that he wrote about accessibility. It still doesn't work out very well when the majority of the planet's population does not have access to such technologies. It is impossible to say that Bitcoin is free if others have no way to it, so to speak. First, everyone must learn about it, and only then make an independent decision about using it. This opportunity was deprived, and therefore I cannot fully agree with the statement that Bitcoin provides freedom. We judge from our own point of view, which is wrong. This world is much more diverse.