I don't think this will be very helpful for scenarios like China at all. Or places like Iran where all the ISPs are forced to be downstream of the government ASN.
This will be very helpful for places on the planet that are extremely costly to reach with terrestrial fiber ($2m to $30m build cost) or a hill-to-hill relay of high capacity mountaintop tower sites with PTP microwave ($500k to $3m build cost to get from a major city into the hinterlands of some african nations). Also for places like small pacific islands that can never hope to economically bring a submarine fiber optic cable to them. A lot of these places have already moved off "traditional" geostationary C and Ku band transponder leases and onto o3b. This is basically a similar concept to o3b but applied not only to large backbone links for ISPs, but to individual customer premises rooftop antennas that might have a cost of under $1000.