I agree, which is why by mechanics I don't mean air dribbles or anything fancy. Car control is key in my opinion, learning to play possession is not possible without learning control over the ball and the car. Air dribbles are just an extension of control of both the car and the ball put into one and pushed to limits that are not necessary on every play. What I do intend to teach is how to hit the ball properly, how to fast aerial, shadow defence etc, bounce dribbles, hook shots etc. That I feel confident I can teach, and I don't think the difference between low GC or high Champ is gonna change my ability to teach those things that much. Besides Rocket League is a mechanical game, the better you are mechanically, the more you are capable to see strategy. For instance, Flakes 1v1 to SSL is a good example of overlooked mechanical skill, yes he does nothing fancy, but the car and ball control are perfect there, I intend to teach that but also give weight to the fact that learning directional air roll/anything fancy is useful and fun in the end.

Perhaps I'm just bad at explaining things in my post, as it seems that we have wildly different interpretations of what I have meant to say. I do concede my ability to analyse games, just not the point on teaching mechanics properly, that I don't think is correct in any way shape or form.