OK, not just me:
https://github.com/graphcool/prisma/issues/1564.
Since export seems to default to us-west I deployed there and tried to export via API:
{
"code": 3008,
"requestId": "us-west-2
simplecjcm8ueit6f360134jdngl31c",
"error": "Insufficient permissions for bulk export"
}
Not finding much in the docs about permissions related to bulk export. Any suggestions?