Ah yes, read that earlier today when visiting another forum. Pretty bad comparison. All they really compared was 1080i with 1080p, which should have no difference if the processors are adequate in the TV.
I might note that although ISF puts resolution 4th on the list, it is still a deal/no deal issue for videophiles. Just not as big as 3 other issues.
I'm really not sure what the point of the article is. There are few true 1080p TVs even available for purchase today, and many of those have sub-par processing. Once more TVs like Pioneer's FHD1 plasma or the Sony Ruby are out and being sold, this will be more of an issue to argue about.
The point of the article seems to be that most people will not notice the difference between 1080p and 720p, especially at the smaller screen sizes. This is getting to be in the "no big news" department, because I'm hearing it consistently.