3.4.1.3 createDocument exceptions and 3.4.2.3 createDocumentFromSource versioningState param needs clarification

The versioningState parameter is optional and defaults to "major". However, for non-versionable object types, it is required to be "none", which makes versioningState a required parameter in this case. This makes no sense. Proposal - make the default major for versionable documents, none for non-versionable. Or make the parameter not allowed at all for non-versionable.

Note also that 2.9.6 says that repos which do not support versioning "MAY create new Document objects in a Major Version state". If this is so, why is the versioningState param not allowed to be "major"?