For me, the link to the actual download page is an image, while the “button looking link” is the purchase/store link… It’s kind of confusing.
Edit:
Picture 1 shows how the email is when “blocking content”, picture 2 shows the “normal view”. There are 2 links in the email, one for the Briefing and one for the store, but the “first view” shows only the purchase-link.
This maybe is not a problem for most users, but the lack of separate button for the Briefing Download is confusing for me.