you wouldnt believe, but certain abilities scale better than others, and in this case DC scales better than NP, especially if you have strong on use trinkets like branch or a good rolled tidestone
and like i said in my earlier post, DC sims higher for my warlock than NP, so thats why i run with DC
EDIT: and if you dont trust me, here is the raidbots sim for my lock https://www.raidbots.com/simbot/repo...iJ7n4dLFetQFKe as you can see, DC is around 2% higher than NP