2 points
I dislike marvel because there is no consequence to their plots and it has gone on so long.
Having to have watched previous movies isn’t a negative, just that the content in question was boring and not consequential in it’s own right.
The stories are not self contained but other than a couple of very major cross overs there is nothing happening in the movies that impacts the rest of the universe unless it is something important for the plot of the next piece.