Looks like the OP has stopped reading this, but I'll address him anyway. I think focus macros were the stupidest things, and I really hated all of the addons and macros that you were basically required to use if you wanted to compete. I honestly hope bioware stays away from them, why should you be able to hit one key and automatically switch targets and use an interrupt because you notice the person who you set as your focus is casting something. Not that there is as much to interrupt in this game anyway.
Focus macros are a crutch and are really easy to abuse and make a less skilled player thrive without actually getting any better. Take shaman windshear for example. Short CD ranged interrupt. I honestly do not thing windshear would have been as painful without focus macros. What you do is take human reaction out of the equation all together. Very few shamans would have been skilled enough without focus windows and focus macros to interrupt anything. But skilled shaman would have still been able to look for a cast animation, switch targets, and interrupt. Maybe not a 1.5 sec cast like was happening in wow, but longer casts.
Honestly I hope this game avoids a lot of the pitfalls that plagued wow, and I think focus macros and addons are one of them.