I'll reply here with what I said in the comment section of that video:
No offense to anyone at all, but I think there is confusion here. Jaani (Spin Doctor) and Owen (Trebuchet Disc Golf) are talking about is a solution to a problem as outlined in the original video that Owen created. It's an issue I know quite a bit about, since I have it. So let me clear things up:
First of all, the video being critiqued is a highlight of a form review video where the trainee in question has an issue with elbow drop during the swing, as well as some off-axis torque that is reducing the distance and accuracy of the throw.
Second, the elbow
can be too low, and in the video that Jaani was showing, the person's elbow was a little low, with the arm collapsed a little bit into the body. Not as dramatic as some people (like me), but it's there.
And yes, the disc is too high relative to the elbow, because the elbow is lower than it should be.
What Jaani is talking about is due to the upper body being too far forward, over the brace. This has the following effects:
1) The throwing shoulder is too high.
2) The throwing elbow is too low.
3) The disc is actually at the right height, just not relative to the disc.
4) The movement of the body is not properly stopped by the brace.
All this happens because of a balance issue, because the center of gravity is too far forward. The person's body is actually protecting itself by bringing the shoulder up and bringing the arm in closer to the body. This is what Jaani and Owen are trying to tackle.
This is not an issue where they're just teaching someone to throw. And even if you accept the idea that the elbow height is fine, and you ignore that the upper arm is collapsed a little into the body, you have to make an adjustment to the disc during the swing.
But Jaani and Owen are specifically not ignoring the problem the trainee has. Jaani describes it as throwing the whole body over the brace. That's the context he means when he says throwing is not a full body movement. You don't throw your body. You move your body to throw the disc. I think this gets lost in translation since English is not Jaani's primary language, nor is it for Kristian.
The "drop the hips" bit is something else entirely, but it's a cue to get people rotating the hips properly. It's not useful for everyone. It's the advice given to the person being reviewed, however.
Attached is the image of the problem the person is dealing with: