It's funny you mention anime because this isn't the first time they fallen into the same kind of slump where every anime is the same spam. You go back 10-20 years and every anime was a fighting series of some sort even if they didn't originally start as one. Like Bleach, Shaman King, Yu Yu Hakasho, even Yugioh were supernatural stories until they became fighting shows with ever increasing villains.
Go further then that and every show was inserting giant robots to chase the Gundam fanbase.
It just seems to be once a concept really does well and catch's the public's attention everyone tries to jump on the bandwagon with their spin.
It's funny you mention anime because this isn't the first time they fallen into the same kind of slump where every anime is the same spam. You go back 10-20 years and every anime was a fighting series of some sort even if they didn't originally start as one. Like Bleach, Shaman King, Yu Yu Hakasho, even Yugioh were supernatural stories until they became fighting shows with ever increasing villains. Go further then that and every show was inserting giant robots to chase the Gundam fanbase.
It just seems to be once a concept really does well and catch's the public's attention everyone tries to jump on the bandwagon with their spin.
I feel the Shonen sub genre seemed to take market precedence.