I literally work in logging / analytics, so I do know a good bit about what we store and how we store it.
I didn't say that we don't store any personal data. That's ridiculous. Of course we store SOME personal data.
I said that we hardly store any data that we receive. Of what we store, we hardly store anything longer than 30 days. It's important to note that we receive an UNIMAGINABLE amount of data. Even a small fraction of a small fraction of that is still unimaginable amounts of data.
I don't know anything about our partnerships. I didn't say anything about that.
As someone who works with Google partners and partnering with Google's data, we see a lot of personal data in it.
You simply might be someone that doesn't work with such data. I do and we use a lot of it and it gets very personal.