Guessing they are scaling down in the hopes of saving bandwidth or maybe they are going to try and up sell their stuff to their users by only giving the lower resolution stuff and announcing a new box set soon.
I just know I have access to the blu-ray release and watched it streaming using the Edge browser so I know it supported the full streaming quality and what they have on the streaming service is massively worse. Like a bitrate starved DvD release.
Edit: And aren’t these the people who were trying to do a hostile takeover of CNN and HBO Max in the hopes of making CNN into a new version of Fox in the hopes of converting more into their cult?