Same with protobuf JSON serialization (oneof, enforcing exactly one field of many is set). But I think the authors were focused on using the shorted possible s

Same with protobuf JSON serialization (oneof, enforcing exactly one field of many is set). But I think the authors were focused on using the shorted possible serialized JSON, no matter the implementation difficulty cost and the inability to use existing schema/IDLs. Which in my opinion is terribad for what is effectively a critical security standard.