I agree.
I remember "getting into" vim back in ~2018 because I was doing enough work on headless machines that having a "proper" text editing experience became a must. It was only through this process did I learn about tmux and what it offered.
At some point, VSCode's remote features became good enough that I didn't really need vim anymore (granted, it's still my go-to when needed), but I still use tmux constantly. And, of course, tmux with agents is an excellent combination. The fact that I can have my remote agents interact with my existing tmux sessions is the kind of workflow I dreamed of back in 2018.
Regardless, my point is that you hear a lot of praise for things like vim and emacs, but everyone should prioritize learning tmux well enough to at least be able to navigate it and hand over sessions to agents.