None of that customer data is included in the purchase. Page 18 of the linked court document is the source of these record counts, and on the right is a "Google's Data Purchase Request" column that lists all of this "Customer Behavior" data as "not included".
The Register is not a serious publication and completely missed this. Other outlets reporting this story do not include the claim that customer data is included.
Sure, but there is enough tertiary information that google owns that explicit customer information isn't necessary. They can and will use this to "enhance" customer profiles. It'll cost them time and money, but those are things they have already.
The Register is not a serious publication and completely missed this. Other outlets reporting this story do not include the claim that customer data is included.