A wise and insightful set of observations. I offer that praise, of course, only because the Reindeer reflects my own experience in working with that odd codebase known as "English." I once encountered a question at a LinkedIn group I follow, which asked: "How do you prefer to write -- with pen and paper or computer?" And my answer was, "neither." I further explained that a typical 1,500 word piece gets "written" when I'm out walking, sitting in meditation, or hitting golf balls at the driving range. Very often, the "scribbling" part is done with a pocket audio recorder, so that the typing becomes more a secretarial act than a creative one (editing, however, is an entirely different story).
Perhaps the only area where I might differ from the Reindeer is in the matter of handling distractions. For me, the "cow in front of my train" can often become part of the thought. This piece, for instance, developed from such an interruption (someone drawing my attention to the Goswami rant that became the main subject of the essay). Sometimes, I have found, distraction can itself be focus disguised.
Now, as for the topic here: if the experience of watching someone code (or write, paint, or even dig a ditch) is an opening into the creative process of the work, then it's worth the watch. That is to say, it's more likely to be a waste of time than a learning experience, but the one good encounter may be worth the ten bad, as long as you can quickly recognize the difference.