Think outside the box.
The government is monitoring TCP/IP traffic to the ends of disappearing people and Facebook will sell anybody out for a buck, especially if it means getting or keeping a foothold in emerging markets.
When the RIAA started suing Napster users, you didn't double down on your own Napster usage-- you GTFO and moved on to Kazaa or Limewire, services that weren't being monitored yet. Signal and Whatsapp are now in the same endgame.
Same with pirate radio. You get complacent and stay in the same spot too long and the FCC will kick in your door.
We need to acknowledge that the party is over and to stop trying to make an increasingly-centralized and highly-compromised internet the medium for all communications. It's lazy OPSEC and it's getting people killed.
We got messages into and out of concentration camps and prisons without slapping a stamp on a letter and sending via the US or German Post. Concerning ourselves with getting people in the DPRK onto the most heavily-surveilled networks and services ever created is not good for their longevity.
The best we can do is offer low-bandwidth, discreet connectivity via shortwave, mesh or satellite, using parts easily procurable in authoritarian regimes.