It's even worse. Most of the folk experienced in running elections and referenda, who spend months booking premises, ordering ballot papers, ballot boxes and the necessary transport and security, pencils, string, booths, drawing pins, signs, staff for the count, allocating political party and press accreditation etc ad nauseam work for local authorities.
Without legal authority to run an election or referendum, I doubt the Chief Executives would have the power to spend any money of allocate staff resources. Every "no-body" in the street would kick up Hell and the unionist parties would tie up the councils in legal disputes from day 1.
Which, as I and others have said, leaves us with the question - are we hostages or are we "allowed" to decide our own future, based on a democratic mandate, at a time of our choosing?