Running is a valid skill for anyone.
Those that scream "stand still and fight me" might as well scream "Oh, i want you to not use certain skills when i fight you"!
Run speed is especially important nowadays, cause with Fear that make you run, often you will outpace your attacker and he cannot finish the job cause he is too busy chasing you. My Summoner does that all the time - leaves the dude who Feared me eating my dust lol.
My Ele used speed to good effect all the time on slower dudes. Speed off and all attacks recover and wait for slower attacker to catch up - wham with all attacks as soon as he was in range.