It really depends on the urgency of the issue as seen by the committee and the government of the day.
Should this be done? Well, it's been 20 years, so arguably it should be done fairly soon. That being said, would it be the top priority of the country? That's not for the auditors to call. That's for the government to have a view on.
If you feel this is really an urgent issue, I think the government should be taken to task to do something now. If you feel it is important but you want to give it a reasonable time frame, that's again for you to consider and recommend or ask the government to undertake.