I love all the conversation around this.
The video shows a person landing hits, but again, the hits do not land at the same time. In Hero terms what's the special effect? If you have extra limbs or HTH auto fire, are they all landing at once or as a 1,2,3 combo? If a combo, then to me it should be Hit, damage shield, hit. I would agree with an argument of some type of the next hit (assuming 3 hits landed & and it's damaging damage shield) that the 3rd hit does some damage as the person was in full swing but collapsed while swinging (assuming the damage would KO the person). In my case the with HTH Auto Attack -> Hit ->Teleport ->(insert roll here) to see if you still swing the next hit. If the hero declared 3 swings and made their (insert roll here), they would lose no endurance. If they failed the roll, they would only spend the endurance of the 2nd swing, not the 3rd (at least I'd give it to them).
If you take your hand to cover a small flame. Do you not take fire damage before your hand suffocates the flame? Yes you do, but your defence is higher than the flame's damage shield, thus you're able to put it out.
While I understand the "system" suggest all land at once, I disagree with the system (5e at least, unsure how 6e handles it), and it should be based on special effects to determine how it all plays out.