You want to make everything about a nuclear facility bespoke and subject to air-gapped drift? What about the guard booth that verifies peoples access, the receptionist who schedules meetings, and the janitor who wants to watch YouTube on his break? It seems unrealistic to lump everything that goes on at a nuclear facility under this umbrella.
For hiring and retaining people, yes. It's understood that the "guts" of what's happening at these facilities needs to be locked down to the max. But, for supporting roles you need to be able to bring people in off the street without 1) a bunch of specialized training on your bespoke way of doing things, and 2) making your employees less attractive on the job market.
Just my opinion, though. Maybe I'm completely off base but it doesn't seem like a good idea to me long-term.
Also, the Kansas City Plant is like a watchmaker's factory, not a power plant. They make widgets and gewgaws, not literally split atoms.