As Ghost has said, once you have a rule, some people will try to engineer around it. The code use to say that if you have a service and that was over 6' wide AND over 1200 amp., you needed 2 means of egress. I once saw where a large box store had it's equipment specially made so that the width of the equipment didn't exceed 6' wide. Now the code says 6' wide OR over 1200 amp.
They will put in French doors and call it two doors.
