I'm doing nothing illegal or unethical, nothing wrong. Nevertheless, I ran from Google asap due to that reason alone. Google represented a massive single point of failure to my digital life.
I now use separate products for just about everything I own. While it's not as convenient as Google, I feel far more secure.
Using Google with their famous lack of customer service to make purchases that I could conceivably need to put a chargeback on felt uncomfortably risky.
Tie my home internet connection to that? How do I know I won't get locked out of the cloud-integrated admin app? Why would I want it connected to anything Google?
The "one account everywhere" thing is convenient and great for their branding, but it's not great for my peace of mind.
What I’m more worried about is their “You violated the TOS. We can’t tell you how you violated the TOS. We can’t unban your account.” If you don’t know someone at Google, you’re out of luck.
Which isn't to say that home customers would have necessarily done better, but most people don't have random maintenance bring them down at random times.
https://www.theverge.com/2017/2/23/14722470/google-reset-onh...
As an aside, you can read the Google WiFi privacy details here: https://support.google.com/wifi/answer/6246642?hl=en