My comment is just general. I believe if you go to the trouble to make Warden, but leave open cycling the window to target cast, it wouldn't make sense to me to take disciplinary action against it. At the end of the day that is all that counts. Otherwise you can just choose not to use if it violates your sense of playing by the rules.

Furthermore it would be odd to me for a Blizzard employee to wake up and ban on for example, mages casting Blizzard together, because they are using software, not hardware. I don't see any questionable extension of what I'm planning to do either ( 1 to 1 click passing).

So I would simply define it as emulating what you can do on hardware (but worse).

To add to it, I don't think the prime function of targeting is to make sure you have your cursor in the window:P (And why would they provide a spelltarget (x,y) script function for 99% of wow players? really no point).

Nor do I necessarily think the prime reason of preventing mouse input on a background window is to stop one using simultaneous targeted spells on a single computer or anything close. It enforces some interaction, but it gives them tight control over what commands can be executed in the background (the convenient place to bot) via action bars and their macro system). Otherwise you can control whatever the hell you want.

If I write software that provides simple 1 to 1 click repetition I doubt that it is going to cause any problem, but still, if they are probably not in the business of giving any sort of approval to 3rd party software (or it would have to be official) so you wont get a response unless its Wardened, but for reasons I've given, it's not something I see happening.