I doubt many people don't dodge/burn at least a little. So the point that you can just dial in a grade and be done with it sort of flys out the window. The other issue is for some of us it's a more visual method. One thing I gain from spilt filtering is seeing . I can't jump to the conclusion a print needs a certain grade with the same ease. Not to mention for me it's quick and relatively painless.
Actually I didn't dodge or burn on every print and when I did I usually kept the same filtration for the burn but the article isn't talking about that, its talking about the theory of giving some of the overall exposure with a hard filter and the rest of the overall exposure with a soft filter and the claim that this method produces prints unattainable with a single filter setting.
It is said that we remember the important things, if true, why photograph? I forget, so I photograph.