I am not likely to have time to check that out. But I will say that when the IBC and Fire Code speak of "means of egress," they are talking about leaving the building. The present discussion is about working in a room that has electrical equipment, and suddenly needing to leave that room because the equipment is doing something scary. The NEC requirements related to the layout of the room are there to ensure you can safety distance yourself from the equipment. Also, if the effort to distance yourself involves going through a door, the NEC requires that walking through that door shall be easy (i.e., door opens in direction of egress and has listed panic hardware). Once you make it through that door, the NEC is happy for you: you are safe; the scary stuff is now on the other side of a door. How you might travel from your present location to one of the egress doors that the IBC required to be installed: well that is not the NEC's concern.