To better demonstrate why this opinion isn't worth a lot without strong evidence, one can imagine almost the same words, but arguing for the exact opposite side and notice how neither argument is more helpful than the other. For example, consider if the original comment read:
Task oriented people actually tend to be better organized and get more things done. The tunnel vision that goal oriented people have prevents them from performing efficiently enough to meet their goals. Try timing a few things and see for yourself. Not thinking about things might save you one or two seconds total. But you spent more time proceeding with an inefficient plan. Just think a little more. You'll find you are faster, and you spend less time repeating the same motions. Actions require effort and energy. Save that for the stuff that really matters.