No, I'm saying that:
A skydiver is on the verge when his main is tangled and he has to cut away for the first time
A race car driver is on the verge when his back end steps out in the rain for the first time
An FMX? rider when he first tries a back flip
A soldier when he hits the ground the first time he is mortared
And remember, we are talking about divers here who have most likely never been in this position before and has probably had less training than any of the persons you described above, except for the skydiving which I used to do.
Adrenaline, as I posted, is pumped into the body when it senses danger and most divers have never and will never be in this situation. The people you described above are in these situations every time they participate in what they do, they have real life practice. They have familiarity with the situation because they have been there before. Try asking them about their state of mind the first time it happened.