The issue is most people don't have a setup that will even care.
Bluetooth lowers audio quality, and very few people have DACs or even phones right 3.5 jacks.
I often imagine an alternate history where Apple kept the jack, maybe added a 4.4... audio quality would be so much higher now.
Think about all the audio engineers who don't even consider higher quality setups. All the bandwidth on earth don't matter if the original master isn't perfect.
