Are there many services that don't ask for this broad scope? I see it often and understand it comes from lawyers studying the business process and writing a contract that enables it within the Kafkaesque copyright laws. They ask for universal copying right because if you spin up a new VM you don't want to have to ask if every message you send to it has permission to be copied to this new instance. And they want it to be irrevocable because you store backups for three years and don't want to have to be constantly scrubbing them for deleted accounts.