... right up until the series had no books to adapt, at which point the consensus seems to be they took a steep dive in quality.
Some of our most popular fiction authors are frequently accused of not being able to write endings - there works are either drawn out way too long, or wrap up way too quickly.
It feels like there's few examples of consensus around what's 'just right' for how fast, and neatly, to wrap up many concurrent plot lines, especially in obnoxiously surreal universes.