It's the virtues, they don't even sync well with the virtue trait-line.
Rushing justice and flowing resolve are especially problematic, becuz these skills have an extremely weak payoff, the procs are unimpactful.. flowing resolve's healing proc, is so weak in most situations, it's inconsequential, it's one of the reason why willbenders have such a bad sustain.. And willbender flames are so underwhelming, lacking damage, it's more of an afterthought.
Crashing courage is fine as it is, it turns you into a tank for a brief moment; once crashing courage runs its' course, the willbender's weak sustain comes back to end them...