Earlier quoted context omitted.
I'm happy to hear about any other open standard that you think might be better. The key is interoperability.
What's broken about the current way messaging landscape is?
This is why we have regulated interoperability on many mass-market technologies. Imagine requiring a Ford to use certain gas stations or a Sony TV to view certain channels. There is no upside for the consumer when mass-market products leverage their popularity to create walled gardens.