In my experience, most folks aren't sophisticated enough to build their own tools. Having said that a workflow tool that has a default workflow that most users can adopt but also some flexibility that allows sophisticated users to adjust it to their needs without making it super complex to use is a win-win situation. I founded a company that solved a workflow problem for K-12 schools. Our initial launch was pushing school admin users to just adopt a single workflow. Most smaller schools were OK adopting it but as we went up market, we realized that even if they want to, it's very hard for bigger organizations to change their workflow (people, processes, bureaucracy). Slowly we started making the system a bit more flexible allowing them to tune it to their workflow needs.