I liked the portion of the article that talked about the connection between gaming and work. The three things that people generally need to enjoy their jobs are:
Autonomy (that is, you have some say in what you do day to day);
Complexity (so it's not mind-numbing repetition);
Connection Between Effort and Reward (i.e. you actually see the awesome results of your hard work).
So, as writers, autonomy is completely nailed. Even when you're dealing with your editor, the majority of the work is yours. She's only going to suggest changes that she believes will make it more successful, and, ultimately, the decision is 98% yours.
Number two is also dead on. There are few things as complicated as writing a compelling story from beginning to end. You can make a case for Brain Science and Rocket Surgery, but taking a creative spark and communicating it to others is amazingly complex.
And now we hit number three. Since writing is effectively art, there are no set set criteria for success short of actual sales (and there are still best-selling authors out there who are unsatisfied with their work). The actual connection between all the work of creating, crafting, and finally selling is STILL no guarantee of reward. It's amazing that any of us EVER work at it.
In the meantime, there's still Warcraft. ;-)