Correct, the reason we do the ones we do is because it is consistent and forces certain responses from our opponents or just pulls them in.
I still feel sad that I keep doing AC > walk 2D > GF/2D it is so terrible and inconsistent.
BTW the reason why 5D > GF whiff isn't so great because it pushes you further away, pushes your opponent further away and you give up whatever momentum you had.
I tested it before and found that it isn't very useful on smart players.