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

[Soukyuu]

Spell canceling while moving is for un-intended playstyles that can trivialise content by making it too easy. If you are going by their intended playstyle then duh, of course there's no issue...

The un-intended playstyle being making use of the range of a ranged class? Come on! If a ranged class isn't allowed to kite then why have ranged classes at all?

Also, with how the current game behaves, you can be miles away and still get hit by a melee attack. Just try getting one of the harder nodes and you'll see what i mean. I don't see them fixing that, so the issue of ranged classes never getting hit won't arise.