The word systemic has a certain connotation in Quebec, so I won't go down that road.
However, I do see a clear pattern happening: whenever a major procurement project is involved, the initial cost estimates are significantly lower than the subsequent cost revisions.
Is it a recurring problem? Definitely.
What is causing the problem? Is it intentional, or is it due to a lack of foresight or failure to plan ahead? Is it a negotiating strategy some public servants use to obtain lower cost estimates in the hope that they will lead to lower bids? Unfortunately, I don't have those answers, but if I did, I'd be happy to share them with the committee.