Unix is not about a terminal, that the obsolete medium, kinda like preaching about DOS PC with 386's... and CGA video cards.
9front copes with actual text throwing the terminal as a different tool to run legacy stuff in such as SSH or some small ANSI C tools either with the APE compat layer or NPE binding ANSI C code to Plan9 native functins.
You can resize windows with shells under 9front freely, no more SIGWINCH. No more broken cuts and pastes while running a terminal multiplexer. No control code risks executing potential malware.
Sure, I get the theory, so why doesn't exist? Where's my modern text/command based interface?