There should be numerous 2.8-second delays. These are not only natural, but would have led to the mystique. In fact I'm surprised the psyop didn't include these, simply for effect. Somber voice-overs could have explained it to the sheeple.
As for answering each other before the other finishes: in such circumstances of uncertainty and novelty, they would have been taking great care to hear each other out. I vote "staged". And it's really the same phenomenon as we see with wartime atrocities: the psyop designers don't bother to think of every detail, and cannot do so in any case, because all they need to do is convince almost everyone. And in that they succeed.