I couldn't disagree more with the premise of this post. I've never been more productive at the terminal in 30 years. The thrust of your complaints appear to be you can't do company IM easily at terminal, but given most employees will want strong audio/video conferencing features too this is perhaps not all that surprising. We have whole classes of new CLI tools that didn't even exist 20 years ago today, allowing us to trivially launch complex application stacks in a few lines.

I think the effect of javascript's wide deployment on terminal tooling is very marginal at best too.