Filename Header section constructor not conform to part21 ed3

[elivolant]

In the documentation of steputils, we can see this constructor for FILENAME in the Header section:
FILE_NAME(name: str, time_stamp: str, author: str, organization: ParameterList, preprocessor_version: ParameterList, originating_system: str, authorization: str)

But in the part21 ed3 standard, section 8.2.3, we have this definition of FILENAME:

EXPRESS Specification:

*)
ENTITY file_name;
name : STRING (256) ;
time_stamp : time_stamp_text ;
author : LIST [ 1 : ? ] OF STRING (256) ;
organization : LIST [ 1 : ? ] OF STRING (256) ;
preprocessor_version : STRING (256) ;
originating_system : STRING (256) ;
authorization : STRING (256) ;
END_ENTITY;

TYPE time_stamp_text = STRING(256);
END_TYPE;
(*

Issue:
author should be a list and preprocessor_version should be a simple string