On both of the video link at the first post, you have to look at the titan cast bar. I think it is a bad design on SE part, but many old players know this that the game graphic show slower than what it acknowledge into the server. Above the titan 's HP, you see the skill cast bar right? if you avoid it before the cast bar reach its end point, then you dodge it. If you are still there when the cast time end, then you gonna get hit regardless of what you see in the animation graphic which take whole 1-2 sec slower.

I agree that it is bad mechanic design on SE part. However, it is not hard to avoid it. You just have to predict it coming and be ready to dodge as soon as it pop up. In both video, you standing there about 0.5-1 sec before you start moving. It is too slow to the reaction time that this mechanic give us.