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

[Rubicon]

We will set up a specific key for halting spells, so we did not implement this spec as a method of halting spells.

Am I reading between the lines but does this mean that once the specific key is implemented, movement as a means of halting spells will be removed? ...so we did not implement [moving] specifically as a method of halting spells.