"I was out of that" is complete bullshit, it's an excuse and it's a reason, I've been caught by it numerous times, so have friends, thing is, shit happens...

Things I learned to try and combat
the game checks your position every (insert number) point of a second, I think the game also force checks your position every time you perform a move, so don;t fire off a skill while running out of a WotL, i had a bard friend who would move and shoot and constantly die to WotL, until I told him stop performing moves while he ran, they still get tripped up but for the most part, problem was solved.
the other, (apparently) the game doesn't check your position if you jump, checks it on the ground before you jump and updates when you land.

I could be totally wrong on all them, but for the most part they seem to work on surviving the "i was out of that"