I think there's some truth to it, but there are also some limitations. If you're a colonel on a base, you don't look at the broader situation, so I think what you need is a combination of the base-level perspective with the NDHQ perspective. Neither is complete without the other.
One of the things that struck me when I was at DND was that all of the more junior people told me they hated being in garrison. They didn't join to be sitting on bases. They just hate it. They want to go to Latvia. They want to go to Ukraine. They want to help with the disaster in Indonesia, but our capabilities now are becoming so limited that the likelihood of their doing that is less than it used to be.