No, but i do think willpower is still good even without suicides, but only need one point. That incidental heal from armour break and other non damaging debuffs can be really useful, not essential but useful
To the disagree:You're telling me you would willingly max out awful tier 1 defense masteries just for a single point in WP? That single point in will power can help you heal a lot in endgame content where you aren’t taking damage unless you get hit and the fights are longer. You can heal quite a bit. I also have perfect block at 4 and recovery at 3. That’s a more than quality setup for all difficult content if you are a skilled player. No points are wasted....
To the disagree:You're telling me you would willingly max out awful tier 1 defense masteries just for a single point in WP?
Talk about wasting points while yournrun 5/5 limber and that fury mastery