No such thing as too much Crit in this game - it's one of the most powerful stats when stacked up with good reason. Especially with how much crit buff bloat there is in Stormblood.

DH is also not a god stat, nor should you focus/worry on making sure your totals add up to 3500 for both combined. Both of these notions are misunderstandings that were spread early on.

I definitely recommend one of the sets Apple's linked based on your GCD preference, you'll also notice how they are both Crit major in bias.