Let me ask if I understand your position.

Via in-game macro or ISBoxer actions, when the user presses a single key:
Code:
/assist Foo
/startattack
/cast Devastate
which has three actions happen instantly when either the keydown or keyup hardware event is detected, is exactly the same thing as when the user presses a single key:
Code:
/assist Foo
/startattack
/cast Devastate
*DELAY*
does anything else in game
? Is that your assertion?