Said article can be found here.
THANK YOU! Been looking for it for ages, I can now show a couple of friends what HE SAID, and end a couple of arguments.
For the record, I don't hate Mr. Cook. I just don't agree with his priorities. What I want in D&D is a 'balance'. Something where all the players can contribute meaningfully in play, whether it be in combat effectiveness or in general RP or skills. I want everyone at my table to have fun, and the Quadratic Wizard/Linear Fighter dynamic actively prevented me from doing that. Designing adventures was an exercise in agony.