I'm sure some people react this way, but to me what he describes sounds more like a trait of being over-emotional and a bit immature in dealing with the stress, than being specifically introvert. I don't see how being extrovert would change the situations described, except maybe that person would get into a verbal fight-back to defend it's hurt ego? And that would surely make the situation even worse. From my point of view (and I consider myself very introvert) the only correct answer to someone telling you that you fucked up something is to get over you ego, take the blame (if it's yours) and try to fix the problem asap.
One thing I learned from "Winning friends and influencing people" is that when there's an argument, start by pointing out the things you agree with. "Yes, there was a bug. Yes, a bug caused it to freeze at an inopportune time. I agree that this was a terrible thing you went through."
Focusing on the "yes, I agree" areas helps you to connect with them and get on the same side. From there, they will be much more willing to reciprocate by listening to your side of things.
That's the gist of what the author was saying, and he also goes on to recommend memorizing something in advance and then walking away. I too get this "can't process verbal and emotional at the same time," but I have found that I can at least be aware of "this is one of those challenging situations." From there I can go through the motions of the "agree" strategy, and stumble my way back to my feet from there.
Maybe it wouldn't work for the author, but I've found success with it.
often fighting over who should be saddled with "The fault" is not useful.
[edit]
To be clear, this is not about some new age pacifism. Sometimes looking for someone to blame is a knee jerk reaction, sometimes placing blame is a calculated manoeuvre. In both cases, often, it is not good strategy to face the "attack" head on.
The whole point of that part of the talk is that in that moment, you aren't capable of reasoning about the situation or responding in a useless way. You're stun-locked!
This is the whole self awareness thesis -- now you know that this is how you respond, and this is a strategy to deal with it.
Don't get hung up on introvert and extrovert traits. They're not relevant to the message.