It may of course be utter rubbish, but let's say the Chinese government does block internet access to the blockchain itself.
As TOR seems very hit and miss there and VPNs are slowly being hunted to extinction what would be the options for a Chinese person who wanted to interact with it? Does the Blockstream satellite thing work?
Chinese cannot block the UDP relay network satellites or any other satellites. Plenty of Chinese use satellites and do not go through the great firewall. Yes; TCP is latent over LEO SATS.
https://blockstream.com/satellite/satellite/