Comment Accuracy is more important, to avoid typo bugs (Score 1) 191
From experience, accuracy is more important, for typing what you mean to type, so you avoid hard-to-discover bugs. Touch typing can help you optimize movement, to avoid typos, and avoid rewind/redo when you spot typos.
Whether touch typing is essential also depends on what proportion of your time you spend typing. For example, for research and analysis, or docs, there's more time thinking than typing. Note-taking is where touch typing becomes more useful, so you can record more info in real-time, and do it more accurately.