Just look at the first Batman, many of the important characters died in the first film. Sure the complaint comes up about casting but there are always around it. Better care has to be made in order for future franchises to live a healthy life. Batman was a great example of a modern franchise and should be learned from. If a director chooses to use artistic freedom than in a sense why even choose the material if you don t like it, but also in the same respect, change is also good and often creates magic.
Franchises are a double edge sword.
Ether way you re going to get cut but in the end they are truly fun and make great popcorn movies in the summer.