I assume the finish line should correspond to the scaffolding above the road that sports "Finish". https://www.tglyn.ch/blog/images/amstel_photofinish_camera_p...

The computation by the author of the article indeed confirms this: https://www.tglyn.ch/blog/images/amstel_approx_line.png

My point is that it is the painted line that was not correctly placed rather than the camera.