If like basically everyone relevant, you use Pidgin to directly chat with Hangouts users and to hang out on IRC (the federated protocol that actually succeeded in the marketplace), then you don't care.
I genuinely don't understand the outrage in support of XMPP. It didn't work out guys. IRC tuns out to be all anyone actually wanted, and to the extent that's not true, it would have been eaten by Slack anyway.
