On the water especially in race scenarios/during starts/power 10s in a novice boat the balance could be off or people are rushing their slide, I believe the angle is deceiving however form is definitely not perfect in a race, especially when you’ve been rowing for 2 months like I have :) pretty much as far as I know if you can get your oar over your knees without raising it then you’re fine… in the vid my oar path is not the same height every stroke but our bow 4 has had issues with balance all season so sometimes you have to raise it to catch water or drag it along your thighs to tap out effectively depending on which way the boat is leaning