If you're a maker, then you're making things for someone. If you're only making things for yourself, then of course nobody else has a right to comment. But if you're making things for other people, then it seems to me that those other people have the right, perhaps even the obligation, to comment on the product, right? The article verges on the parodic idea that no maker should ever be subject to any criticism. If that's not the author's intention, then the author ought to be clearer what is intended.
That's my drive-by comment.