the point of the post is to help people get back in shape, not necessarily so they don't 'look like a chicken.'
that being said, lifting weights, as i'm sure you know from your rowing experience, is not a substitute for other forms of exercise (in your case rowing) but rather a supplement. I've lifted weights for 10 years -- I certainly find them beneficial, but you can get in shape without lifting weights, and if you do, should use them as a supplement and not your only workout.
essentially, i'm saying, lifting weights != getting into shape.
edit: I said " have a good strength training program. You don’t need a gym membership — but it’s easier to use weights than gravity, especially with core muscles."
strength training != lifting weights, although for me, this is the easiest way to do it.