People are telling you that they find vi style editing to be beneficial or valuable for efficiency reasons, and you seem to me to be dismissing this. That is what I would call discrediting the experiencing of others.
jlgreco: vi/vim is an efficient text editor when you learn it! And even more efficient with a foot pedal! Don't discredit our time spent learning vi/vim when it is in fact an efficient text editor!
robomartin: vi/vim may be an efficient text editor, but in the grand scheme of a large(non-trivial) project, small improvements to text editing efficiency are irrelevant. Particularly at the sake or cost of learning and mastering vi/vim. There are easier-to-learn and more-intuitive text editors available now.
Both valid points.
Is that observation on topic or even insightful? No.
Of course what makes this frustrating is that he does not even acknowledge that he is making a different point than other people.