Watching is not the same as changing
Most network mapping software is read-only by design. It watches, it draws, and then you go somewhere else to make the change. That gap is where drift comes from. It is the same split you see across network software in general, between the tools that show you the network and the tools that change it.
Here the map and the enforcement are the same system. Access decisions stop being a translation exercise between a diagram, a firewall and a memory, because the same edge you are looking at is the one being enforced. That is the plain version of network access control.