The article is here; from the Introduction:
According to the Supreme Court of the United States, I am the lead singer of The Slants. I am not. I have never been. I am the bassist—the founder, the bassist, and the person who spent the better part of a decade fighting the federal government over the right to use our band's name. Anyone who has ever listened to our music, attended one of our shows, or spent a few moments searching our name would know this. But the Supreme Court's opinion in Matal v. Tam says otherwise, and because it does, so do the law review articles, the IP textbooks, and the classroom discussions that have built up around the case in the years since it was decided.
I raise this not to embarrass anyone. I raise it because it is a precise and verifiable illustration of something that practitioners and scholars who study Matal v. Tam should understand: The legal record of a landmark case is not the same thing as what actually happened. The opinion is not the case. The briefs are not the strategy. And the story that has calcified in the legal literature—about what this case was, how it developed, and why the decisions made along the way were made—contains gaps and errors that only a firsthand account can correct.
This article is that account.