I'd assume so. The CAN-SPAM[0] act mandates that the unsubscribe link must not contain any authorization, e.g., you click the link and you're immediately unsubscribed. This is just trading a click in one location for a click in another, but it's a neat feature to not search through the entire email to try to find the unsubscribe link.
[0] - https://en.wikipedia.org/wiki/CAN-SPAM_Act_of_2003#Unsubscri...