It's probably my biases speaking but I also think the isometric RPG throwback graphical style isn't nearly as charming as say, the 16 bit console RPG throwback style (see: Undertale, Cosmic Star Heroine, etc) which limits their appeal. Now I will admit to not having played any of the new throwback games mentioned in this thread, but I am hoping they at least made the interface a bit more intuitive than the old Infinity Engine games.