Google tried to add support for it in their product
Is like saying that google tried to add support for HTTP to their products. Google Talk was initially a XMPP chat server hosted at talk.google.com, source here.
Anyone that used Google Talk (me included) used XMPP, if they knew it or not.
Besides this, it’s only a story of how an eager corporation adopting a protocol and selling how they support that protocol, only to abandon it because corporate interests got in the way (as they always do). It doesn’t have to be malicious to be effective in fragmenting a community, because the immense power those corporations wield to steer users in a direction they want once they abandon the product exists.
That being said, if Google Talk wasn’t popular why did they try to axe the product based on XMPP and replace it with something proprietary (aka Hangouts)? If chat wasn’t popular among their users, this wouldn’t of been needed. This could of been for internal reasons, it could of been to fragment the user base knowing they had the most users and would force convergence, we really can’t be sure. The only thing we can be sure of is we shouldn’t trust corporations to have the best interest of their users, they only have the best interest of their shareholders in the end.