No, I wasn't. I specifically said that I was providing link to a high-res video to SA, because the combo was mentioned by some posters before. And that combo was discussed in terms of its downgradability at least as much as in terms of the flip edge.
As for the 3F+3T in the CoC SP, the outside edge is even more obvious than at the SA LP, and it also lasted longer. You could see it in the YT video that I provided the link for (pay special attention to the slow-mo replay). I'm watching the high-resolution video I just downloaded, and I can confirm that it is every bit as obvious an outside edge here as it was on the YT video, if anything the high resolution makes it more apparent.
Again the center of gravity idea is another intuition that usually goes with edges: if you're on an outside edge, then you normally have your center of gravity on the outside, and your tracing is curving to the outside; vice versa if you're on an inside edge. In Yu-na's case, her tracing is very flat (no obvious curving to the outside) and her center of gravity is also not on the outside. It is precisely because her center of gravity is not on the outside, that she can be on an outside edge without having a tracing curving to the outside. And she can do this because of the way she's picking her other foot: her weight is shared between the two legs, so even though her left foot contacts the ice on the outside edge, overall her weight is in between the legs, and her direction of motion does not swerve along the outside curve.
However, what defines the edge of a jump take off is the *edge*, not the tracing or the body rotation or the center of gravity (these are just heuristics that typically go along with the edge, but not always, and clearly not in Yu-na's flip's case), that's why it's called an edge! If a tech panel wants to be literal in interpreting the edge definition, then it's very understandable why they gave Yu-na's flip an edge call.
By the way, the edge calls (and all other calls) are not made by a single tech caller or controller, it's by the panel of all three people.
Another thing I hate about the tech/judge panel distinction: why have such a small number of people (tech panel) determine the whole outcome (as so often it has) with these borderline, inconsistent calls? They can easily make human mistakes or have personal biases, just as judges can. At least give the power to a large panel of people from all different countries and different schools of skating, so that the biases and mistakes are averaged out.