HD radio is a waste. Just think of it as the latest incarnation of AM Stereo. Now there was a winner!
HD Radio (on FM) had potential when it first came out (you still hear about it in the promos for these things.) But when it came to REALLY making something of that, not many of these radio conglomerates bothered much beyond mostly lame syndicated/automated feeds of whatever.
That's why it never took off. It didn't live up to the hype. People had expectations - including REAL "HD" sound quality. Even though that particular art has LONG disappeared from the commercial recording industry itself.
If government had mandated ALL new FM radios to have HD at the time it was unleashed, I think it would have gone much further (even with the mediocre stuff.) At least the common people knew it was there. And from that point, things could have really developed for it.....
I could sit here and bitch about how indifferently on all levels AM Stereo was treated until it's mandated simply just to shut me up......