Government would really have to respond to that. It comes back again to the business case. For a project of this size and complexity one would have expected that the need would have been identified and communicated from the client departments rather than building something and then expecting them to use it.
Evidence of meeting #69 for Public Accounts in the 39th Parliament, 1st Session. (The original version is on Parliament’s site, as are the minutes.) The winning word was meeting.
A recording is available from Parliament.