Sound quality may he better, but the programming variety does not. People will sacrifice one way or another. Current Boston area FM just lacks, than it did in 2012. Back then you could get Irish Music, Oldies, over-played 90s rock songs via 98.5-2. 80s centric, 70s centric, classic country, Blues, and so on.
All those niche formats left. Many FMs either don't broadcast an HD-2/3/4, or they repeat an AM station which is mostly talk. I think the only original formats that are exclusive to HD substations in Boston are BIN on 94.5-2, WERS+ on 88.9-2, the the new Hip-Hop format on 96.9-2, the Channel Q on 103.3-2, The Cove on 103.3-3, the "tomorrow's hits on 104.1-3, WAAF on 93.7-2 and 104.1-2 (which is a zombie Jukebox that calls itself WAAF), and is 106.7-2 still doing Christmas music? I refuse to include Hubcast on 98.5-2, which is a "best of" for content that originates live on The Sports Hub. Nor am I counting stations that rebroadcast AM stations or FM and HD-1 signals that originate out of market.
HD had more variety, but changes in direction and ownership changed all of that. Then to add that HD Radio has low listenership. I agree with your analysis about the sound quality, but I argue the offerings are poor at best. At that rate, just connect your phone via Bluetooth and stream something that interests you. The sound quality will beat out FM, AM, HD, and satellite radio.