But why does it have to be stereo? I know we've all been raised believing listening to quality audio must in stereo but the idea that stereo is necessary for good audio quality is nonsense. If your favourite singer was in your living room singing to you, would they sound terrible because the sound is only coming out of one mouth? Of course not, they'd sound great.
If you're wearing headphones, yes, stereo is important. But if you are listening to speakers, most people do not sit in an optimal position, nor is their room acoustically designed for music listening. The stereo effect and what it's designed to do is lost in these cases. Having a speaker that can read the room and adjust and project different frequencies based on what it reads sure sounds like to me that it will my far superior to a standard stereo system. The need for stereo separation is moot here when you have a speaker than can dynamically project the music into the room.
So far reviews have said the HomePod is actually all that it's cracked up to be. But of course, the proof of the pudding is in the eating. I certainly look forward to finding out.