Wait, it doesn't? Genuine question. Where can I read about this theory more?
rephrased for ease of interpretation - venting about a problem is nice just as stretching a muscle is nice. stretching doesn't fix the root cause of muscle soreness though, just as venting does nothing to fix the issue. emotionally re-reacting is likely to result in strengthening of existing associations, which is more likely to cause repetition of a problem scenario, as opposed to leading to scenario avoidance.
At the He-Man club of course. We all face our challenges with stoicism like Odysseus when his sailors got eaten.