In the end, nonlinear writing is just another tool in your writing toolbox. It’s not the best way to approach many apsects of writing. It’s probably not going to help you with short stories at all, and sometimes you’ll have some part of your story that you just have to get down before the rest will make any sense. But half the battle for a writer is just getting something down every day, and as something that both makes that easier to do and takes away excuses not to do it, nonlinear writing is pretty good. Give it a try sometime, you might find you like it.