Mages in PvP

That may be for proficient MCers like yourself, but I'd say 60%~75% of Warriors, even when effectively MCing and Magneting don't do it well enough or have enough damage to escape the Dance of the Magician as outlined above. In the 25%~40% where I'm near death, in about 5%~10% a second dance can usually get me out of there, the Singular Direction Dance of Escape.

I will agree that, in a mob, there is a high likelihood that MCing will result in a momentary death, but 1-on-1, I probably have a good chance of escape or beautiful swirling death dealing. Luckily, we don't play in the same server.

don't agree with that "luckily" at the end

and as you said, in 1vs1, the class with the most mobility has a better chance of escaping, problem is:
pallies might freeze you
heroes might shout-stun you, rendering your dance useless, then Magnet you once the first stun is over
DrK have great range, magnet again, and also roar if you get too far (and in my case, soul driver which hits both sides, making the dance less effective)

so as you can see, running away will not always work after crash, which is my point.