I'm still annoyed that Amazon stopped sending order details in emails so that gmail can't show me when specific items are arriving. More recently 'getsauce.com' started to do the same thing, hiding order details behind an opaque link to their website. Every player in tech wants to force you to interact with their platforms purely on their own terms, to the detriment of the users.
Agreed, that really sucks.
We should blame Google for this, and not Amazon. Google added this data from your email to your advertisement profile and used it to increase their own revenue.