I hate nothing more than when a random mistype on a website or app causing shit i don’t understand to happen without reasonable ways to undo it or discover it. I don’t really care if the app can be controlled with a keyboard i want the ui to be discverable and usefull.
This can happen if the applications exposes single keys as shortcuts. If they are "hidden" behind the different modifiers (i.e. Ctrl, Cmd, Alt), then mis-clicks should not be possible or should be more tolerated.
The "intuitiveness" argument is also related. You cannot rebind well-known shortcuts to different actions and expect the user to not get frustrated.