As a tank I can tell you I dont want you to dps on my target.
I want you to dps skull, cross and so on. So mainly your addon would produce bots who dont see whats going on. Not an improvement from my point of view.
When it comes to programming there is no task open to program. Just setup bartender and you're done. The things that cant be done in bartender are 99% not easily done. And as you say for procs there are 100other addons.
I dont see your addon to fill the promises from your opening post
