Was it really expected in the first place that the ordinary messages don't get saved on Google's servers? As someone with a passive interest in Allo but who has

Was it really expected in the first place that the ordinary messages don't get saved on Google's servers? As someone with a passive interest in Allo but who hasn't been following it closely, I never assumed the "smart AI" messages were anything other than simple hangouts-type messages that get stored on Google's servers. I'd even expect (/hope) them to be someday accessible on the web or transferable to a new phone. It's the incognito that are end-to-end encrypted and I expect are secure from Google's prying eyes. And I don't think anything has changed there. This is a non-issue for me, anyway.