OK so I get the problem with a program running as a given user being able to grab all of that user's key strokes. But why try to stop something running as root

OK so I get the problem with a program running as a given user being able to grab all of that user's key strokes. But why try to stop something running as root from grabbing users keystrokes? If someone has root on your box it is pretty much game over for any security anyway. Anything that pretends that it isn't is actively bad since it will give you a false sense of security. So to mitigate this simply have multiple profiles. One for work, one for banking etc and one with sudo access - and don't su into the sudo access profile just Ctrl-Alt-F1 when needed.