I didn't say I can't dodge anything, I said I have problems dodging.

I linked the thread that detailed the cause of this issue, you may or not agree with it, but I believe that's the most accurate explanation so far.

As for DoTs, have you wondered why a skill that is labeled as "instant" is not really instant and you have to wait until it takes effect? Or better say, why instant abilities in the GCD are not really instant but those outside the GCD are?