So one video signal is a nice clear picture due it it being component and the other is a crap composite signal and has all the video issues that go along with it and somehow that is a fair comparison of progressive vs interlaced.
The video is a comparison of component cables (using 480p) vs composite cables (using 480i). It is a perfectly fair comparison.
As a video for comparing component vs composite, fine, no issue with it, it's fair enough. Video was linked to in response to this topic though, which is progressive vs interlaced, not component vs composite. Using a component vs composite video to demonstrate progressive vs interlaced is not fair and it should be the same signal for both sides, not one side being a significantly worse one.