Ok so, You call know that the Faust can curse the user, right?
Well weird thing happened to me in the Clockworks. I started at Moorcroft and made it to Emberlight, and only got cursed once. The curse was from a charge attack, I only had the Chaos Cloak and Faust equipped at the time.
tl;dr Only two things equipped greatly cuts curse chance? Or just a fluke?
The curse can only occur to the user from a charge attack on both the Faust and Gran Faust. Try using the charge attack more (which is super weak compared to the Divine Avenger), and you'll definitely get cursed often. I've noticed curse resistance seems to mainly affect only the duration and how severe the curse affects you, not the chance that it has to affect you, me thinks.