The shitty UX will probably be the reason when I cancel my subscription one day.

You're a billion dollar company and your web player has problems getting the focus right.

You still haven't found a decent way -other than notification and email spam- to remind users when the series they're watching start a new season. Like, keep them in the user's list, but apply an "inactive/watched" filter so they don't mess up the list of currently running and unwatched series?