I agree with the concept Todd and why you have opened up this discussion. Based on what I'm reading, the push back revolves around human error...and can a group of experienced racers rely on an official(who may or may not have any clue about the nuances of SM)make the decision correctly?
As has also been mentioned, no doubt a decision like this when a Hoosier H2O is involved is different then a Toyo RA1.
How about...someone(official/group of SM drivers) very in touch with the class is appointed the first evening of a Majors event to make this call. The decision will be made and announced 15 minutes before any session(qual/race). Regardless of the decision...it puts all on equal footing. Bottom line is those very confident in wet conditions will prevail regardless of tire chosen.
For regionals...eliminating the Hoosier wet as an option may help the cost argument. Not that the initial cost is much cheaper but driving RA1's on a dry line is not the end of your tires!