Most of the time, design artifacts are throwaway documents. A design can and will change in a thousand little ways after these documents are supposed to be “complete.” In terms of allocating time and budget, design artifacts can be downright wasteful. They can even get in the way; designers could get attached to ideas as they transition to functioning screens, precisely when they need to be most flexible. Every design is speculation until it’s built.
Like it or not — and some of you will surely disagree — we can survive with fewer deliverables. Of course, what this looks like depends on how you work.