It would be good if there were ways to create builds that aren't solely based on parrying, because, for example, tank builds can't exist without parry rewards. All the good things from the other skill trees pale in comparison to the reward from parrying; it's hard to compete with healing, gaining extra life, stamina, and strength by parrying.
It would also be good if the parry was nerfed with a cooldown on missed parries, because currently you can just spam the block button and become basically immortal, especially against players