Http://ppa.edx.org 403 Forbidden

When added manually to it’s own sources.list in the apt folder I get a 403, trying over HTTP in a browser I get:

403 Forbidden

    Code: AccessDenied
    Message: Access Denied
    RequestId: B61AC472319D4695
    HostId: 120/T1tNzS4LFhhmAlzYn5pagILiAfUHOGWhIkQCZ9gpFCQRdnAj28p05FQL+BPJaubQEn191D4=

Trying with sudo add-apt-repository -y deb http://ppa.edx.org bionic main as per https://github.com/edx/configuration/blob/c47d85a/util/install/ansible-bootstrap.sh#L122 I get:

Error: need a single repository as argument