Let's be real. HBO wanted to hold on to their cash cow for as long as possible, but D&D just shat all over the last season to get that sweet Star Wars cash.

Nobody was on-board with anything in that last season except D&D, who just wanted to finish it off as fast as possible. Not even the actors.

That they threw away all the rules they established before like traveling now took 0 hours and soon. All of this because the last book wasn't written yet so they had to write some story themselves and failed miserably.

You could build a museum of horrible decisions and fill it with the last two seasons of Game of Thrones. Whether you watched it or not, the show was a cultural touchstone, and the ending retroactively ruined everything that came before. Many shows have started well and ended poorly, but I'd argue that GoT was on pace to be an all-time top ten series, and there was absolutely nothing good to say about how it ended. Bad writing, bad acting, bad production values, sloppy editing, poor visual design, it was both rushed and too slow, and nothing made sense. If you paid someone to deliberately fuck up everything about the show, they would not have been as effective at it because it would have been obvious.

Compare it to this... Watching a highly rated chef come up with the most amazing sounding and looking dinner meal over the course of a few hours. You are anxiously awaiting to take a bite and salivating for that moment. When you finally get served your plate and get to that scrumptious first bite, the biggest wave of disappointment hits and you lose your appetite.

I don't know how else to explain it