No, Google just sinks in people into project which is going to be doomed anyway - otherwise the same people could build businesses of higher chance of success and endanger Google's position. It's destroying competition by paying people salaries. Not sure if Google does it purposely or it's uncontrolled fatal mechanism.
Yeah, I am pretty much in that situation, still use Hangouts daily, mostly with long running group chats.
Being able to use it from any device, or even a browser while at work makes a big difference.
If there's anyone who I have to chat with in the Google world, it's likely they still use or have Hangouts, because, including Talk, it's been around for a long time. As soon as Google decided to abandon it's existing, sizeable user base, it basically left the market.