Or keep Table 250.122, and add a second column for maximum number of Ohms. Add a third column as an informational note, for the maximum length of the default size corresponding to that number of Ohms.
That would meet the intent of the physical issue that they are trying to address. I.e. making sure the EGC has enough conductance to be an effective ground fault current path.
It could speed up the electron flow on the green/bare wires. Just think about how much time is wasted by the electrons when they have to stop at each conductor to ask if it is a GEC, bonding jumper, or EGC so they know how many of their friends can crowd on the same time.
It is probably why those conductors are not normally current carrying. It takes too dang long to get from one end to the other.
