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 Rohirrim speak the irl mercian dialect of Old English. Tolkien was for sure going for Germanic which is close enough. My Black Elf issue in rings of power isn't that everyone isn't white, it's and this is mostly the proto Hobbits and men, elves can be pretty reasonably explained, that it's done kinda at random. Like in an entire town of white dudes there's 3 black charscrers. Where are the other black people then? Do these people have family? Are they from somewhere else either recently or ancestral? Big part of Tolkien non LOTR middle earth stuff has a great deal to do with the movements and mixings of different cultures over a vast span of years and by the second age thousands of years of migrations and cultural exchange has happened and could be reflected in the diversity of the casting. It could be made to blend very well with tolkien's world building. It reflects more on the show being super lazy in that regard pretty much across the board more than anything.