I don't think most developers or admins really have the toolset/skills to debug to root cause. Most people see debugging as the process of making problems go aw

I don't think most developers or admins really have the toolset/skills to debug to root cause. Most people see debugging as the process of making problems go away, not as the science of understanding a problem. You need both developer and admin skills, as well as a pretty good understanding of the whole stack - the application, the framework/libraries, the application runtime/support libraries, the database, the kernel and the network.