Moving will be made to interrupt spellcasting at a point in time...

[Chezen]

Which game allows you to kite and never take damage while dealing the same amount of damage you're capable of while standing perfectly still? Tanks can kite but they do so by getting enmity and using defensive buffs. Not dealing damage. A BLM kiting means there's now no need for a tank at all, you ARE the tank AND the DD at the same time. That isn't balanced.

You cannot currently kite and deal damage fluidly, as you have to stop and actually cast the spell, leaving yourself easily open to be caught up to and hit. Change nothing about that, and it would work fine. I'm sure other ways can be thought of to offset it.

This change primarily has to do with PvP, secondarily with making more "defined" party roles. I object to both reasons.

If it doesn't matter to you, then you really have no reason to argue.