You need to support everyone, or it all becomes pointless.
My employer also blocks some Google services. For example, I can't access Gmail. Trying to use Hangouts without Gmail is swimming upstream a bit.
Gotta love life behind the firewall!
How are these two related (usage-wise, I mean)?
Also, is your employer paying a Google Apps subscription, but blocking email? WTF.
I've tried to run 4K60 VP9 (and h.265 for that matter) video from youtube on the latest top spec MacBook Pro and it's completely impossible to watch. Transcoded to h.264 and computer barely gets warm.
It would definitely be an interesting way to look at how bad software patents are for our society. It's not Google's fault (though they do participate in this system) that good technology had been locked away only to be used by proprietary software.
But also I think you're missing the point of free software if you want to limit usage of free software based on your personal value judgement of a company. That's antithetical to free software.
(I work for G, opinions are my own)
Right now Hangouts is only for meetings where we want to share a screen or video chat. Most of the time a voice call is enough.
That might not be a good thing though, since it's unclear if $5 monthly will be able to support them over time.
Hangout Chat is really a rework of the idea of hangouts. It brings a lot of functionality that people like from Slack (everything you mention I believe).
Note that Hangouts today does have search sorta (it ain't great). If conversation history is on, it can be searched from Gmail web (not Inbox either), using the "in:chat" filter.
(I work for G, opinions are my own)
[0] https://thenextweb.com/google/2017/03/09/google-takes-slack-...
"The Hangouts Chat platform supports a wide range of capabilities — from bots to simple scripting using Google App Script — and integrates with third-party applications so teams can do more right from within the conversation."
That's I think all that has been said so far. More details will come once it's released.
I think plugins is a major buzz-kill for most people (like me).