But wannabe human factors 'experts' don't very often point out when things go right, do they?
Correct, they do not, but it is all in the equation. The whole idea is to make all the rights outweigh the wrongs and to ensure any of the wrongs (as we are all Human) are supressed to ensure they do not happen again. I know it all sounds like a load of cr*p, but thats the way it is. At the end of the day it is to ensure Aviation Safety.