WARNING: SPOILERS AHEAD
The story was rushed. Freya's bro (cannot even remember the dudes name that is how memorable he was) unites factions that have been at odds for centuries in a matter of moments, off screen mind you. Sif calls for Thor to kill Atreus (before he narrowly escapes) and in the next scene, which happens soon thereafter is like:" It's fiiiiine, let's go kill Odin."
The ending was a narrow corridor arena with two underwhelming fights at the end (Thor and Odin).
Ragnarok was a joke, you do not fight him he loops endlessly in the background fighting Thor. He is there just to kill Freyas brother (which was supposed to be sad I guess?).
Atreas is sad when he sees innocents killed at the end and Kratos does a complete 180 and says that he should accept what he feels (even though he has been teaching him to "close his heart to it" the entire time).
The few characters (the two dark/light elf lovers, the big Traveler Champion were so irrelevant, that I do not know why they were even put in the game.
EDIT: Just because I do not have endless praise for the game solely, does not mean that I do not like it.