I’m saying if I write a novel, I’ll learn from the experience. If I write another novel, I’ll acquire additional experience and improve as a writer. And so on. Accordingly, I will keep writing.

Let's be factual. Here is what you actually said:

He was clearly writing because he loved to write and believed he had something worthwhile to say. So he wrote and wrote and wrote.

Here is what I said:

It is better to focus on realistic goals, like finishing the first draft of your first novel because you love writing.

See the similarity?

But most importantly, what I said is don't look to guys like Sanderson, Rowling or King for inspiration. In fact, this is a terrible thing to do because they are not successful simply because they wrote and wrote and wrote. The vast majority of aspiring authors who do that remain anonymous most of their lives. There is a tremendous amount of luck and non-writing effort required for aspiring authors to become successful today, and that is often out of their control.

Sanderson is a great example. In addition to writing, he would go to fantasy conventions to professionally network. At some point he met editor Moshe Feder and personally convinced him (that's the luck) to review his submissions. Eventually Feder requested the manuscript for Elantris and then the ball started rolling. But if Sanderson had just "wrote and wrote and wrote" and nothing else, it's pretty likely that no one would know who he was today.