The reasons for this can be many. One is that they do not know how to plan, or they do not how to find the information that will make the basis for a good strategy. Fundamentals Analysis involves asking some hard questions and answering them honestly. It involves asking who we are, what do we do, where are we going, how will we get there. These remain the same whether you are looking to develop an e-commerce site, an intranet for internal communication, or an extranet for external communication.
Strategy looks at the answers to find the solutions to needs that arise from the answers.
It also asks its own question. What technologies can I use to satisfy these needs. Strategy is the architectual rendition of your vision. It is the how you get there solution to what your company wants. Project Development is the third step in a successful project.