Even as a touch typist, while I don't look at the keyboard I still make typos here and there so I need to look at the computer screen. I think that's what they were going for.
same. my modus operandi is to press ctrl+backspace to delete the typoed word and start anew. on a cli it is ctrl+w instead, to delete a word/command. force of habit sometimes has me do ctrl+w in a browser and we are back at the topic at hand: making mistakes.