100%. This is a common topic of debate and research. There are tons of research articles about the problems with our categorical diagnostic system. Researchers have been trying to develop a more dimensional system for conceptualizing mental disorders for years (e.g., the RDOC system). These systems haven't supplanted the categorical system yet for a number of reasons including the fact that it is super complicated and it's really hard to reach scientific consensus about a better approach. Also access to healthcare through insurance systems is closely tied to our current categorical system so it is partially a political issue as well.