I'll throw in my vote of agreement as well. After running Titan a bit, I successfully dodge about 85% of AoEs, yet the rest of the time it's range is slightly longer than I think it will be (slightly outside the red line), or I think I'll have made it in time only to be smacked a second later.

Here's a hint SE - Make the damage happen ON THE ANIMATION. If you dodge it before the red line/circle vanishes and the animation appears, you should always dodge it. I don't care if you have to shorten the red line animation time to adjust for this change, as long as is I can consistently know when I have dodged or been hit.