It is no more automation, then anyone else who uses a castsequence on each of their toons.
And has the macro on the same keybind for each.

It is putting everything onto the boxing software, and doing basically none of your macro/attacks from within the game.
But you could take each of those castsequences and make them into warcraft macros, drag them onto a key and mash that key.

I like that you configure every class you would consider playing.
And then you can just create a team with those toons on it, and drag some mapped keys onto the team (or add toons to ATG's for class), and the DPS is already set.
If Blizzard changes a class mechanic, you would adjust one set of macros (within IS Boxer) rather than having to do it for each toon in warcraft.