here is what I sent Google in response:

I love Gmail. I've loved it since the beginning when I got an invite code from [redacted] and I think it has just gotten better and better over the years. But, I am disappointed that you didn't commit to being more careful with how you handle privacy leaks with new products. Either make a commitment that you won't intentionally do something like this again, or admit that your plan is to "educate" people about auto-added privacy-violating products that ride on Gmail's coattails. If you plan on going the latter route, please let me know so I can switch to a different email provider now.