Ummmmm, perhaps you should reread how Apple is marketing this product. Best quality sound hardware begs for best quality sound software. Or, at the other extreme, garbage in: garbage out.
If Apple made a million dollar HP Magical Deluxe Speaker, the quality of it's sound will be limited by what it is fed.
OR, if "99% listeners don't care about audio quality," won't they be happy to save money and buy just about anyone else's much cheaper smart speaker? If they "don't care about quality," why pay more?
Again, none of that matters to the average user. Even with your standard streaming-quality music from Apple Music, a high-quality speaker such as this will be able to impress most enough to love it.
Remember that most of those 99% have never heard great quality speakers before. They're use to listening to music on their iPhone, with the provided headphones. Their car is likely the highest quality sound system they have and those that have a home stereo most certainly haven't tuned things for the room it's in, so beam forming is going to blow them away.
They don't know what they're missing, so they aren't missing a thing as far as they're concerned. They hear something better than what they're use to, and now the bar is higher and they want it (the HomePod). But since they don't know the bar can go even higher (hi-fi tracks), they won't be upset.