As you said, writing and sharing your thoughts on your own business is fine at any stage. The author wasn't making a final, definitive assessment of his business, and it's absurd for SeoxyS to assert that he was.
Even if the author had made a "conclusion", he is welcome to. If he learned something in two weeks, congratulations to him. If after two weeks post launch, and months of development, he cannot plausibly have "made a conclusion", then no one on this thread has the right to "make a conclusion" after reading one blog post.
Did you think about your comment for months before you posted it? I think you need to give this article a serious shot (think months) before you'll be able to objectively assess this article.
Thanks for being honest about your experiences. It's refreshing to hear some real metrics, even if they aren't the most compelling stats for a launch. Excited to hear more updates in the coming months.