Yes, agreed. Patch is surprisingly very forgiving material. Put it down in several "rough" sections and tamp as needed. Once it forms a base your happy with, go over with general sealant. At that point, you may want to do the entire walkway to give it a nice uniform "new" finish. Most of the stuff I've used is good even during wet use although i choose not to apply during rain or standing water. The temperature up here in the NE is starting to get out of the asphalt/concrete repair season though : (
good luck!