cheap jokes at the expense of immersive story

Rating: 3/10 (12 November 2017)

Firstly if you are looking for a comedy movie or just want to turn your brain off for 2 hours and enjoy a good cinematic experience, I would give this movie a 9/10. And there is nothing wrong with a superhero comedy. Deadpool and GoTG vol.1 were great. However, my first and most important criteria of the movie is the story.
To be fair, There are plenty of good things in this movie. The story is internally consistent. On broad strokes, I can understand the character's motivations which lead to the conflict. Thor hits all major steps in the heroic journey. In the climax he even surpasses his father, making a choice Odin could not, to defeat Hela. The final bridge scene to Led Zepplin was excellently set up.
Even with all the merits above, at the end of the movie, I did not care about any of the event or any of the characters. And why would I?, the characters barely seemed to. Every dramatic scene, every obstacle or triumph, all seem to just be there to bridge the movie to it's next punchline. The story implies Thor becomes a wiser and stronger king than Odin in the end. We know from the events of the movie he has been through hell (figuratively) and sacrificed a lot. But looking at Thor, apart from the obvious appearance( hair length etc.), there is nothing to suggest there had been a change. In the end of the movie, Thor still seems to be the same character(happy go lucky) he was in the beginning.
I might as well have watched a movie length version of old Popeye cartoon with high production budget.
****Spoilers Below*****
Examples.
1.Although Cate Blanchett is an awesome actor, why is her character ,after being betrayed and imprisoned by her own father for millennia, quipping jokes.
2.On the day after Thor learned he had a sister, saw his father die and knows his home faces dire threat; he is still fixated on his broken. Even if we consider the fact that Thor just values his hammer more than his family and home, why is not more angry or distraught for his loss.
****End of Spoiler****
And, if neither of these character care enough to show any emotions toward the events of their movie's story, why should I? And if I don't care about the story why should I bother investing 2 hours watching a movie. I can just as easily read some memes or watch animal videos to get the same laughs.