As an example, let us consider a quest to assassinate an enemy leader. From the ground you approach a fort with guards at the gate. You charge and are able to dispatch them and sneak in a side hallway. You methodically take out packs of roaming sentries, and some of them shout at you as they run toward you. You notice they’re in the middle of practicing dark and forbidden magics, and you take a moment to disrupt their ritual. Dashing into the main courtyard you spot your target, sneaking and fighting your way to him--and with a forceful slash--the fort’s captain is vanquished, and as guards are alerted you fight your way out, glorious and triumphant in your success.
Alternatively, from a flying mount, you fly over the gate, see some guy whose name is highlighted, land on top of him, kill him, and then fly away.
Being efficient is great, being clever is great, and using your cleverness to be efficient is great, but how many of us have done the Tillers dailies up on the cliffside where the Hozen are, and waited for packs to pass by before setting down right where you’re supposed to, use whatever thingamabob you’re supposed to, and then lift off ASAP*hoping-hoping-hoping*nothing aggros? How many of us have become furious when we*actually have to fight something!? Is that clever gameplay? Is that being good at playing the game, or is it using a mechanic to avoid having to play it? Is that what the game should be, and what our expectations should be as gamers playing it?