Cute, how you are all missing the point. It is not about having a meat shield that just swallows up all damage. It about enemie control and having individual enemie behaviour. If all enemies behave the same and are equally smart, there is no difference in enemies. If a brainless zombie behaves like an elite assassin, they might look different but in reality they are just the same.
Also risky traits like Glasscannon are pretty pointless, if just every enemie will jump at you, as soon as you get in range.
Also if everything that matters in combat is damage output, were exactly is the 'variety'? Everything is in this game is about damage, attributes and skills. If it does not do high damage, is is hardly worth using, because without damage you don't get the armor down quick enough to even try to crowd control.
And if you don't understand, why full physical is superior to mixed setup, it just explains enough.
