I read the article and in my opinion it fails to present compelling arguments or evidence as to why XMPP is much worse off because Google once implemented it. S

I read the article and in my opinion it fails to present compelling arguments or evidence as to why XMPP is much worse off because Google once implemented it. Sounds like there was massive growth thanks to them coming, and massive loss when they left. Interestingly it sounds like other implementors capitulated to some bad behavior on Google's part to the detriment of others, and there are probably some good lessons to learn there.