My point is that the property of associated/dissociated is completely unrelated to the property of realistic/unrealistic.
Iwould argue that the issue here is that the term 'realism' is more like 'internal consistwncy' or 'verisimilitude'. When we have an event that happens and breaks verisimilitude it breaks us out of the game. Whereas accepting the initial premise of warp drive means that a ship warping into space next tk you isn't braking the expectation. Whereas dissassociated mechanics are breaking those expectations because there's no reason why the character ahould only make a one handed catch per game.