Well Tenacity is pretty much useless on a healer, it comes with determination which isn't that useful too if you're a FH since you won't get damaged consistently enough to get a high % constantly. Anger is a PVP stat, you rarely get a lot of wound complexity in PVE now, especially tanks who stack determination and tenacity, they almost never get it anymore. Willpower is good for CC heavy fights, where you don't want to be laying on the ground for 10+ seconds, but WP under something like 10 is pointless, which is a bunch of items invested in that stat, that doesn't really benefit you in any other way.