Finishing a 400 Amp service started by another contractor. A 3/4 EMT was run from the MDP to the building steel for a 1/0 ground. I was told a long time back not to do this, that the metal conduit could "choke" the ability of the ground to dump a large fault. Can't find any reference to this in NEC. Any truth to what I was told or is running in the EMT practical?
