HBO tried to make the line go up by cutting two episodes off the second season in the midst of the writer's strike. Like no exaggeration, the season 2 finale ends in a way that makes it immediately obvious two more episodes were supposed to exist. They were simply truncated along with the all the payoff for many of this season's character arcs and plot lines.
One of the writers even made a statement that an eight episode season wasn't their decision. Unfortunately the news of that must have hit them too late in production to fully accommodate that in the writing.
Except on all the subreddits for this show, the prevailing opinion amongst dipshit redditors is that the writers are cutting book events to make time for LGBTQ asoiaf fanfiction.
While that'd be based if true, it's not. Like wtf? Do these people live in a different universe? Are they watching a different dragon show? Redditors ain't alright, man. These people watch the enshittification of media in real time, and their lack of media literacy results in them going on queerphobic witch hunts and throwing wild assignment of blame at anything but HBO and capitalism.
The book is based on is a historical book written years after the events, with contradictory relates. For the war the show is adapting, the main sources are a maester and the queen's buffoon. Also, this second season were something like 20 pages of the book, where only 3 relevant things are mentioned, blood and cheese, the dragon fight in rook nest and the dragon seeds. Basically everything else is made up by the showrunners.