i think you're romanticising things.
the whole situation with interoperability was not sustainable, as evidenced by the fact that it was dropped by every player as soon as possible.
one of the reasons why it was not sustainable was that the standards at that time were conceived for a different era, and everyone wanted special features not available in the standards.
it does seem like we're having much better success with interoperability nowadays, but only because the standards are much better today.