That's ridiculous. Someone comes up with a spec, and if a company doesn't redo their systems to implement it and connect to others with it, they are sabotaging it?

They are sabotaging the only interoperable open and free protocol (which is an Internet standard developed through IETF). Did they propose anything better? Not even close. Even Google which boasts that their Hangouts are superior and thus can't use XMPP didn't open their protocol. So who cares if it's better then? E-mail is way far from perfect, yet it's open and interoperable. So everyone supports it. XMPP is the only developed analog for instant messaging. And all those selfish jerks of companies can't agree to support it. Or develop anything better if they don't like it.

You're not even speaking coherently. They aren't sabotaging it by not adopting it. That's just called... not adopting some arbitrary spec.

Being published by the IETF doesn't mean anything. The IETF has a spec for SIMPLE, too. Should we blame all XMPP networks for sabotaging that "standard"?

Why should a third party have to do something just because you don't like how they run their own networks?