How do I add all root principals from an organization to an SNS access policy?

Question

I want to grant publish access to an SNS topic to all root principals from my organization, similarly to what's described in the AWS Blog here.

{
  "Sid": "AllowPublish",
  "Effect": "Allow",
  "Principal": {
    "AWS": "arn:aws:iam::123456789012:root"
  },
  "Action": "sns:Publish",
  "Resource": "arn:aws:sns:eu-central-1:........",
  "Condition": {
    "StringEquals": {
      "aws:PrincipalOrgID": "o-xxxxxxxxxx"
    }
  }
}

The principals field doesn't allow wildcards in the arn, and if I wildcard it for all, it gives access to other principals from the accounts as well.

Is there a way to achieve this without explicitly specifying the principal of each account?