What are you suggesting exactly? Presumably the buyers are happy to have a product with the described features, which include "Google Assistant", which answers to your voice.
I'm pretty sure if you're paranoid about Google, you'd also not want them to control your wifi anyways.
"HomePod is a breakthrough speaker that adapts to its location and delivers high-fidelity audio wherever it’s playing. Together with Apple Music and Siri, it creates an entirely new way for you to discover and interact with music at home. And it can help you and your whole family with everyday tasks — and control your smart home — all with just your voice."
Also, just generally shared it in case skimmer types missed that.