They seem unable to not see this as just another LOTR, with the night king being just another Sauron, and you kill him by punching him in the face, really really hard, cus he's a big bad bully
For years it was touted again and again, GRRM makes a point out of battles and wars not solving things, he makes a point out of these prophecies being faintly unreliable, and varied, while maintaining some realities
He has been planting so many threads, so many possible solutions, and hinted at so many different possibilities, and D&D opts for Arya - IN THEIR WORDS - cus it'd be kewl. OUT THE WINDOW with everything else, and in with the kewl.
This is what I get. This is what I get for letting all of you bastards influence me into breaking my own rule against TV-shows, and getting myself firmly invested in this series.
This is equivalent to "Oh, turns out the ring was just an invisibility-ring, has nothing to do with Sauron - didn't expect THAT didya! See? Clever writing. Now, someone go hack Sauron to death with a dagger."
Such a dissapointment though, they really had an oportunity to showcase some real twists, epic fantasy (in an original sense) and poetic tragedy (such as the Mormont vs Danaerys fan-theory)
Instead they pulled a fucking "wildlings on the wall"-thing, where we have a hectic battle, and ka-poof, there they go, no more white walkers. What was up with the Horn of Winter? What was up with the spirals? "Nothing. Burp" -D&D
Reminds me of AOT season 3 part 1, and how idiots complained about the Uprising arc of the manga being too slow so the anime studio rewrote it and recut into an inchoerent mess, to the point where they introduce Instant sleep darts into the setting just so they can introduce the Human Supression squad on the first episode which breaks the setting so hard they basically have to ignore it from then on.
The pacing was so fast paced that a character that had a mini arc with the protagonist through multiple episode and fleshes out the setting is instead killed off on the same episode they are introduced and they have to hastily give his lines to other characters at the end, and when they actually pick up the original material the pacing and storyline improves again. Funny that.