I do agree that QTEs can be a compromise of sorts. God of War seemed to start the trend, and I thought it pulled them off tastefully enough, particularly against the bosses. The developers envision this badass part of the fight in which Kratos snaps the ship's mast, latches onto the hydra, and impales its head. Or he runs up the giant's arm, cuts off its hand, and swings up to cram it down its throat. It's really freaking cool... the problem being, none of that can be emulated with traditional gameplay. Especially not with older tech. So QTEs give them a way to add a cinematic element to a fight, while still maintaining some faint vestige of possible failure. It was easy enough in God of War, where most enemies have unique input commands that are easy enough to remember. Analog sticks for the gorgons, X button to cram your blade down a minotaur's throat, etcetera etcetera.
Granted, many games go overkill with them. Especially with the "push to kill this enemy instantly" mentality. At least in God of War, the mundane enemies could be killed without them.