I am a Thor fan and a fan of cosmic characters. Not sure I have to do either of those things.
I mean, I am not as mad as I would have once been but it is pretty rough. As Norvell says, we have lost the past art of telling stories through battles.
It is possible to do things without humiliating characters like that for no real reason.
This whole storyline has basically been one large Thor fanboy love fest with Thor kicking butt with little to no reason. The story has little depth or any sensible resolution besides giving Thor fans a chance to see Thor "getting over" one of his biggest foes, this is basically Pro Wresting.
I highly doubt Galactus is dead, Thor will stay at this power level, and that this story arc will have any meaningful lasting effects besides the fact that Thor fans have been demanding a great depiction of Thor kicking arse and are tired of Thor being the butt of jokes.
Take it for what it is, a piece of cake for a starving fan. Little to no meaningful nutritional value but it taste and feels good for a short time. There are plenty of other comics where Thor is depicted "wrong" it's about time that the character the book is named after is actually in it and is the star for a brief moment.