I’m sure that’s coming down the pipe. It really is the next obvious priority. HomePod has been getting progressively better over point upgrades and server side Siri updates but the next full update that’ll be announced at WWDC will likely address remaining concerns. I think that multi user and voice ID are at the top of the list.
You could be right, and I hope that your are, but unless your work for Apple this is just a guess.
In a house with multiple iOS users Siri on the HomePod has to be turned off and that really ruins the experience.