That's because GTA clones and Sandbox games have been done to death already. We're still getting them now, but they don't always have to be about gangsters/gangstas, being "ghetto", hood, or constant assholes. We get cowboys, samurai, super heroes, hackers, etc. Like any genre or jumping trend, 90% of everything is crap. Do you know how many games tried copying GTA in game play or tone during 6th generation? How most of them were mediocre or garbage? Saints Row was one of the better ones, but even the first game sucked and took too long to get fun and had too much tedious padding with "respect points". GTA2 did the respect meter better back in 1999!I still can't believe nobody tried to fill the gap left by rockstar not making GTA game anymore. GTA cloned used to be super common and they almost all vanished around the same time as they stopped making GTA, that's a gold mine just left untapped.
Whatever clones came in the 7th generation, most did not last long or evolved in to something else. I'm glad the GTA era of clones is dead, Leaves more room for creativity and more game variety.