Got here via link from @M_c3d's reply in one of my threads.
I am somewhere between both @M_c3d and @rkmcswain on this - I strive for a simple (not simplistic) and scaleable deployment, but it also needs to be something all inclusive when needed.
Just today, I tried to install Civil 3D 2018.1 update (which failed miserably), and knowing that the original update destroyed some customizations, all I wanted to do was backup what I have so far (I'm still setting up 2018 before we formally adopt for production), and I couldn't... Because Migrate Custom Settings is only available with vanilla AutoCAD install despite Civil 3D being built on AutoCAD, and Map 3D (as a generalization).
At the end of the day, I simply feel that we should have the option to choose, and as this is available to vanilla AutoCAD it should be made available to Civil 3D - being able to export a .ZIP file of all customizations, pipe networks, etc would be useful.
Cheers
"How we think determines what we do, and what we do determines what we get."
Chris (BlackBox) Bradley
Managing Partner / Developer / Civil Designer
Quux Software | Sincpac C3D | Style Explorer