I find it utterly fascinating that you know all about what the HomePod will and won't be, based on a teaser introduction at WWDC.
I, for one, suspect that there's additional tech built into them that won't be mentioned until later this year.
You call a product announcing a teaser?
They went into a great detail about how they were going to "reinvent" home audio and, in my opinion, failed to back up that statement.
Your assumptions that the HomePod has a lot more tricks up its sleeve is utterly fascinating.