1- you do not macro you fail. Do not ned to use 3rd party tools to macro, then game lets you macro a whole set in 3 block, of 6 gear at once. Someone that doesnt have at least TP and WS sets on his DD is medicore.
2-yeah you can do almost every content in this game with fail jobs and gimps. at 75 you could do Odin with 36 gimps and a bit of luck, there were videos of 18 gimps in full AF killing ultima/Omega and so on. If they were not gimps though, they would only need 18 people for odin and 6 for ultima/omega, thus multiplying by 3 their efficiency. Thats good for casuals, isn't it? A casual doesn't have a lot of time to play. Let's not mix casuals and gimps too. A casual is not necessary a gimp. at 75 my salvage LS had half the membres casuals who literally only loged in for salvage and assaults. And they were good. SOmeone who plays more than 10 hour a week and don't gear swap is a gimp hardcore.
3- Anyone who plays this game seriously knows that Hit hard =/= kill fast. The fact you think bst pup dnc or rng are good DD says it all. SE has stated over and over that they dont want to unfail those jobs.