I stopped reading after the third book too, and that’s exactly the sense I got.
There’s no conclusions, just character deaths. It’s just an unraveling web that becomes less and less coherent the further it goes.
I’ve read all of them, though not very closely. Unless it was one of a handful of important characters by the 4th book I had absolutely no clue who anybody was. Names kept getting dropped like I’m supposed to know who this person is but there are so goddamn many it’s impossible to keep track.
The last two books are like 3/4s just moving people around, and literally everything interesting that happens happens in the last 250-300 pages or so.