The general problem with these kinds of TUI apps isn't the shortcuts but the complete lack of discoverability of the commands and their shortcuts. The expectation that people have to go and the read the documentation and then memorise the shortcuts is ridiculous.

GUIs for decades have demonstrated practical ways of making commands discoverable and also teaching users the keyboard shortcuts. All without having to ask people to RTFM. It is a pity that so many TUI apps haven't learnt the same lessons.

There is a reason why Nano became such a popular default editor for email. The shortcuts are printed at the bottom of the screen(!)

I hope more TUI apps pick up on the idea of the command palette though. It is a fast and keyboard friendly way of improving usability.