Do you really think they need rpg system and sound (you play porn games with sound?!)
The thing is, I would like to play a game. Game is gameplay, choices, structure + story, dialogue, lore. If it's kinetic, is an electronic book with pictures. So yeah, every single game that had structure, rpg systems, sound design, gameplay loop, I quite enjoyed, so I'm going for that. Lab Rats 2 would be a nice example.
Sound wise, I can see that sound design is being rudely disrespected and ignored, and I do think it is a grave mistake. Rightly chosen music track can add emotion to the scene, whether action or drama. Sounds can add immersion. Like, you don't notice it, but the audio is doing it's job quietly in the background. It's all the little things added together that contribute to the sum.
when they cant create single path kinetic story?
I have my own suspicions of Crush's conduct of this project, but I do think he's burned down with writing. I've quite enjoyed beginning of the story and up until side-quests were introduced. Still, assuming he's not taking a piss and farming money, which he might very well be, if you absolutely can't write anything good, take a step back and work on other parts of the game, at least something will be moving forward, instead of stalling.
If he's not good at writing, I do not think it automatically translates being bad at systems/gameplay design. When you're making a game solo, at the end of the day, you have to be a Writer, Programmer, Gameplay Designer, Artist, have Music taste. You kind of have to be your own orchestra. If he's bad at one, I don't think he's necessarily bad at the other.