I'm not sure why it's made out to be so complicated. You don't need any of the click to move or any of that.

Your spells as a DK, Warrior, Rogue will start your attack anyhow, and if it doesn't a /startattack and a /follow <main> is all that's needed.

Plus, my auto follow strobe is on with no problems, and there's no need for the interact with target key.