This is more about being prepared to handle the, "slings & arrows of outrageous fortune", that occour within the tourney.
I would suspect that your success comes from entering a tourney with a solid game plan, based on study & analysis of your game, following that plan, then analyzing the results & adjusting as you deem necessary. Attitude & knowledge, "nowledge," if your from Nebraska, are both important. Most of the comments you are refererncing are likely directed at those who seem to believe Phil Helmuth's, "If it wasn't for bad luck I'd win every hand", comment applies to them. Look at the number of posts in the bad beats thread.