But that can be said for any basis of any tool or technology. Your use of CNC matching creates a dependency on that tool, and it's advantages and disadvantages

But that can be said for any basis of any tool or technology. Your use of CNC matching creates a dependency on that tool, and it's advantages and disadvantages. You've locked yourself into that tool if you don't want to change the way you work. A shift to any other tool will come with modifications to your work, and I don't think that is unique to 3D printers.