I could never outrun a melee limit break once it began casting to be honest, even with repelling shot, so the best you can do is run behind them if you're close enough I believe. I'm usually targeted with it while in the middle of pure chaos, so it's near-impossible to foresee until it's already happening most of the time.

Also, maybe people were referring to the original ranged LB, but I actually find it very good. You just naturally can't use it in the same manner you would melee and you need to be more patient for the opportunity to show itself to you rather than use it just so you can start building your next one for the same, hasty use.