Indirect is there to protect code that uses an API, not the API. Since it's API's all the way down, this is needed to protect any application on top of the BIO

Indirect is there to protect code that uses an API, not the API. Since it's API's all the way down, this is needed to protect any application on top of the BIOS/OS/HAL. Otherwise, very little would be protected by copyright. However, it's entirely possible that "indirect" is a word with a definition that is different to our understanding in legal documents.