i can only answer for me, but one of the reasons i enjoy rpgs more than any other genre is because combat, more often than not, relies on my characters stats and abilities rather than my own ability to press the x button at the right time, or push up with the joystick while pressing down on the y button.
i hate twitch gaming. many games i enjoyed for the first part started to annoy me when id reach a level that required a bunch of random clicks of the button and movement of the joystick to complete. it frustrated me to no end when id be stuck at one part of a game, not because i couldnt solve a puzzle or because combat was too hard, per se, but because my fingers just werent fast enough to do the required button mashing.
thus the beauty of crpgs. its more about my strategy in combat and how well ive built up my character that determines my success rather than my ability to press x, y, x, z, y, y, z, y, x within a split second.