It's not a massive privacy breach. If you are so anti-Google yet use their devices then most likely you're already only distributing to GrapheneOS or LineageOS anyway. For most people who already have a Google account this is a very small bar to clear.
Getting a DUNS number is ass, getting the 20 testers is ass, etc etc.
I do not want to give Google my government ID to write a shitty little app that only my family will use, or only close friends use and it gets sideloaded through sending it on chat. I do not want people making apps to skip ads on YouTube giving out their government ID. I do not want people making apps that might get them in trouble with their government to give out their government ID to Google.