I think they are going the other way. If a type 1 and 2 building is very fireproof they don't want to compromise that with what some think is an inferior wiring method.
I tend to agree with George on this when he says NM is a pretty safe way to wire things but old traditions die hard.
I do believe wire in pipe is a lot easier to modify and they modify commercial a lot more than your average home so they have reasons beyond safety in mind when they select EMT.
