Normal viewers on a given stream will not be aware that the stream is delayed. This updates the API to be inline with normal/logged out viewers rather than priviledged users.
Null/undefined (or just removing the key) is a breaking change. And can cause errors in peoples applications if they don’t monitor this forum or the docs for revisions.
It’ll take time for applications (like say OBS for example) to update and they might error out/crash complete, if they don’t catch the issue of a missing expected key.