I can't be agreeing with you because I still don't quite understand your argument. You're using the term 'gameplay' without defining it, and that'll means different things to different people. Heck, QTEs are a type of gameplay.You just agreed with me. People play games because of the gameplay, not to watch QTEs.
Some games are based on reactions and following instructions. The challenge is responding fast enough and accurately enough. Guitar Hero and Dance Dance Revolution are the pinnacle of this style of game.
Other games have their focus on coordination and reactions, so aiming and shooting is the challenge. That's pretty much every shooter ever.
Other games focus on decision making, like Tetris.
Some games combine elements strongly. I'm thinking R-Type with it's choice making regards how to use the Pod and which weapon to equip. There's problem solving decision making as well as reaction based coordination.
I really don't know where your argument fits in. My best interpretation is that you disregard some gameplay types as they don't appeal to you so you believe they don't appeal to others. But I really don't know what your vision of a 'deep shooter' is and what you're looking for in cinematic games. I certainly don't see that cinematic games are any more lacking than non-cinematic games - perhaps they are, but without anyone explaining what the differences are and giving examples, I'm hard pushed to follow the argument.