The point is, Ment, that a character with high strength will also likely equip armor. And shields will probably not be tied to stamina, even if they are tied to stats. Also, even if he can defeat a damage dealer in PvP, we will mostly have PvE here.
In PvE, a "tanky" character who can hold enemies for almost unlimited time while the others attack them is extremely useful. Although it can be replaced by summons.