Earlier quoted context omitted.
Homepods have U1 chips. They can position airtags within your house. You can put an airtag under, or adjacent to, a lamp and link it to a smart switch. Your apple watch has gesture detection (still in beta, tbf), as well as U1 and real time positioning capabilities. Everything required for apple to know not only where you are, but which way your hand is pointing, as well as where "smart devices" are in your house is…
$25 for an Airtag, plus say $20 for a smart switch. Plus $200 for a HomePod. To turn a single lamp on/off by pointing at it, something that nobody ever wants to do (alright, once for the cool factor). If someone wanted to overpay for useless features, they can already go for a Philips Hue. I can turn off my lamps from anywhere in the world using a $10 Tuta ZigBee bridge and a $8 LIDL light.
So my prediction would be that apple releases a ZigBee bridge and light for $50 in about 3 years and calls it a fancy name. People will tell you how absolutely essential and innovative it is and how you could never get that without an iDevice.