this is partly because the muscles you engage, the angles at which you apply force are going to have slight or large differences from another player due to differences in biology and physiology. we are not all the same shape nor strength.
so of course the mental models are correlative _as well as_ causative e.g. "if you keep slamming your finger into the keys you will likely develop RSI and you will have drastically impeded your ability to control your tone or dynamics" <--- doesn't get much more causative than that.
furthermore, what you've asked for sounds like it would be receiving instructions like, "contract your pronator quadratus to 17%, rotate 34° to strike G3 at a 48.5° angle with your L ring finger, and here's all the angles and associated muscular tensions associated with each phalange that you'll need to master: ...." ? Is that what you mean?
I have yet to meet someone who is unable to receive postural feedback if it's not framed in terms of anatomy. Human movement locomotion does not come from conscious direction to move individual muscles, it's a much more integrated experience (e.g. "extend your right leg" -- want to guess how many coordinated actions of muscles and neurons are are involved in that?
