It's true tho

Considering the quality of game of thrones, I think it's stopped mattering

Not to mention the two pieces of media aren't equivalent, GoT is a TV show with new episodes frequently, while Endgame is a single movie that has been very anticipated for over a year. Not to mention not only was the spoiling very limited from Europe before the US got it, spoiling was limited by everyone for about a week after, for both the US and Europe