Here’s an interesting read: Matt Sammon Sez — HD Radio Can Be Saved, If Someone Cares to Try.
My take: no company is going to provide a staff for the HD-2 (etc…). So it becomes the thing nobody pays attention to it. And if you pay attention to it and the “HD-1” ratings go down you open yourself off to a whole lot of criticism.
It’s dead. Nobody cares. Just stream. Next.