It depends on the recipe. If it just needs to be whipped just until it's foamy, then yes, doing it by hand will work just fine, but if you need to get it to the stiff peaks stage, it's going to take you a VERY long time to get there and there's the chance your aquafaba will just not be as stable and as strong as it needs to be. For this particular recipe, I don't recommend whipping it by hand.