One way to phrase that would be to say that you have a vested interest in supporting the idea that end user skill is more important than ingredients since you sell a means of improving end user skill. Not sure if that's a source or a conflict of interest. I'm not saying cooking a steak is easy or hard, I'm saying that you are not creating quality when you cook a steak; the maximum attainable quality is capped by the ingredient. It's like the "I made this" meme.

You're arguing against a strawman on your other points since I didn't make a generalization about all cooking and wouldn't have listed sourdough or brisket in the analogy.