This is not short of amazing, having worked in a lot of near-zero Internet places. My last job in East Africa had us relying on very expensive satellite from a Danish ISP.
I just checked Blockstream and if the network status map is correct, the Africa satellite coverage only misses out Somalia, Madagascar and part of Ethiopia. The only issue now is the hardware needed according to GH. I know if I set that up in the places I worked in, I would also require security guards to make sure they stay where there are!
It does not provide internet access, but rather a channel directly to the Blockchain, with a initial cost of $100 US. Most
3rd world country citizens will not pay that to have access to the Blockchain. I can see small spaza shops doing this, to
enable them to receive bitcoins. < similar to a internet café >