Until very recently, Comcast/Xfinity did something similar. On their landing page and logged out, one would click log in and enter their credentials, and the top bar shows you logged in. Click on the email link and you have to log in again. Click on the "My Account" link and log in again not once but twice, for a total of three logins to finally get there.

I think they fixed it about a month ago. I have my Comcast email forwarded to a real account on a domain I own so I never have to use their insane email system again, but I still have to log in to pay my bill. It's down to one login session now, but it's still a nightmare of a site to navigate.