Red is a great color for "oh shite", but that doesn't mean people won't run away from the pain if it's beige, 'specially if they get hit a few times first. Once bitten and all that.

What's really criminal is the wavey motion on the indicator not bein' akin to the cast bar for the action. Having the swish start at the origin and reach the end of the graphic when the ability is about to fire would've been a nicer visual cue for how screwed ya are.