3DC2regions--Simulating Primary Datacenter Failure

Why the new primary region can’t use logs from the satellite? Why does it need logs from a faulty data center?
If I turn off DC1, I see in the log:

"log_interfaces": [
      {
        "healthy": false,
        "id": "edb6db3124477c84"
      },
...
"possibly_losing_data": true,

And the cluster enters the mode

{
  "can_clean_bounce": false,
  "reason": "cluster hasn't fully recovered yet"
}
{
  "description": "(Re)initializing automatic data distribution",
  "name": "initializing"
}