HBO Max content from DC Universe

So I used to be a subscriber to DC Universe, and was really bummed when they moved all their content to HBO Max. But I changed my xfinity subscription to include HBO Max anyway. However when I click on DC Universe content in xfinity, for example Titans, it still shows that I have to pay for it. Was I under a mistaken assumption that "moved to HBO Max" meant I would have access to all DC content as a HBO Max subscriber? Or am I not registered correctly or something?

Could someone explain it for me?