The point is, even if the bonding was only a 14 ga, it would still operate an overcurrent device unless we were talking about a big feeder.
Florida is pretty serious about bonding since we are the ones who killed an appliance installer with energized steel studs and we have had problems with energized siding. Usually a metal box, securely attached to the metal siding, will accomplish this.
If this is a metal building it is a slam dunk 250.104(C)
