March 1979, 98% voted yes to a ballot saying (Islamic Republic Yes or No) No one knew what this republic would look like nor there was any definition. Mr. Khomeini had given speeches how it would look like but it looked more like Alice in the wonderland than a real system. It was looking like anything after the vote than a real Republic which the political world could relate to and definitely it didn't materialize after 35 years into one.
if hypothetically accept you are right, and if we think the people are still as smart as they were if not smarter then from Islamic regime point of view there should be no problem for another referendum to see if the people will vote the same after 36 years of a regime. But you see the councils appointed do not trust the same smart people to choose whom they please and vet them politically. So no my dear, neither that 98% was right nor what you are saying and the proof is the system in place that is being safe guarded in fear of change.