I disagree with the author. I know he's incredibly successful and right about pretty much everything he's ever said, but I've had some experience in this area and just finished reading through some of the archives and I think his focus is wrong. I'm going to ignore the technical issue and talk about the bigger picture and higher level things than what was said in the blog post. If the OP thinks that the process is most important, it's really about end results. But if he thinks it should be about the end results then he's an idiot for not thinking about the process. I'll weasel in a reference the startup I co-founded even though it's not directly relevant.
For the same reason as I implemented a VA synth on an Arduino with an antialiased oscillator and 2-pole resonant filter - because building a Ship In A Bottle is fun!
I'm honestly really curious about this. Could you elaborate?