Earlier quoted context omitted.
The point was they trained to be a runner, not a cyclist.
But the metaphorical goal is to cover distance not get fit or to make the best use of what you trained for. A trained runner on a bike is faster than a trained runner. At least if the metaphor is about coding as a means to creating usefully functional code as efficiently as possible. Careful coding by hand may eventually be a hobby activity. Personally, while I do get some satisfaction in coding by hand it was always…
Not true if they kept going the wrong direction.