we know for a fact that lab results don't always translate into a live environment. I didn't use the word 'wrong' because it would be... well, wrong. Our theory crafting community is smart, and their analysis is sound. The specs and classes they advocate have been proven to be strong wow gold and effective, and are the top performers in many cases.
What I'm suggesting is that often other specs can still be viable, competitive, and better than they're presented to be by parses, but that's not always reflected because they didn't make the initial theory crafting cut.