In PVE, Magicka light armor builds are easier to keep alive than Stamina medium armor builds, mainly because shielding can be repeatedly spammed and covers the health bar, which allows the user to keep attacking with defenses up, while dodge-rolling medium armor builds get penalized for spamming rolls and do not allow the user to attack due to the dodge roll animation.
It's common to see magicka builds easily survive aggro from dungeon mobs due to shields, but it's more difficult (not impossible, just more difficult) to see a stamina build handle mobs so easily. The only stamina build that can do this with relative ease are stam sorcs because of Crit Surge. It would be great to feel better about my defensive options on stamina toons that make them feel as good as magicka toons.