The only issue with writing a CLI in Node is ecosystem. The CLI libraries for Node are (or were last time I checked) inspired by React. Not a paradigm that is fun to write in, and if I'm making a CLI tool it is because I am bored and want to make something for my own entertainment.
Yeah the last CLI app I used was actually a TUI. It routed std out and std err from scripts and programs it'd call out to into separate windows. It had animations and effects and a help system built in. It also had theming support because the library I used for the TUI happened to have that and came with some default themes! It was a bit beyond a simple CLI tool.
If I'm farfing around with the console I'm going to have fun.
Gemini CLI used it, and I actually hate the layout. Never thought I'd see a CLI manage to waste terminal window space to the point of needing to zoom it out.