Head on endcourse video is shown purely because it is easier to see the boat's position relative to the boat lane buoys. However, bear in mind that the boat deviation appears to be "opposite" to the Sure-Path graphic.
The boat enters the pre-gates fairly central but by the entrance gates is a little left of centre (around 7cm). By buoy 1, the boat is 15.2cm left of centre but still well within the allowed 20cm tolerance. This remains generally true till buoy 5 after which the boat returns to centre by buoy 6 (1.4cm to the right) and the exit gate. Cumulative deviation at buoy 6 is 27.5cm, well within the allowed 49cm for a record to count.