I agree to an extent. When you're shotgunning episodes it is MUCH easier to just enjoy it and not obsess about the small details.
However, the plotlines involving Jack and Kate/Sawyer in the first part of season 3 still seemed to drag a bit to me, even during a rewatch. Not saying I didn't like it or it sucked, it just seemed kind of stagnant for a while. But as I've said, from about halfway of 3 all the way til the end is gold.