If Mag’har orcs were actually great, then I would have approved your biased discussion but sadly they are just a shadow to they’re green skin brethern. In terms of racial, lore and characters.
Grom hellscream in dreanor was a wimp. While his son, Garrosh has joined the lightforged to purged the evil from that land and my guess is, he is also love stricken to Yrel and the female Thrall, is just a thug.
So, NO! They are not superior to any of the races in Azeroth.
Oh please. You werent even there, you were chilling overseas, when we stomped horde forces so hard, they fled like cowards achieving nothing but destruction of own capital city.