Then there’s the fact that not all were necessarily airing new episodes in September 2018.
That’s a relatively small sample size overall, and each person was asked to select one of these three options for each show: dislike, neither like nor dislike, like.
Game of Thrones’ status as an outlier both as a series that was off the air during 2017-2018 and not on broadcast television like the rest of the 30 shows may have skewed data as well, even if it didn’t make the top 10.