Pointing out that the currently default structure could be replicated by other means currently available is no argument for keeping it the default. It is not in

Pointing out that the currently default structure could be replicated by other means currently available is no argument for keeping it the default. It is not in fact some God-given design to which all paths must inevitably converge. Clearly the author is proposing that it be discouraged one way and another over a period of time; your characterisation of that as an impossible task is backed up only by speculation.