The CCF assisted a taxpayer named Irvin Leroux in getting a decision from the B.C. Supreme Court, holding that Canada Revenue Agency (CRA) owed him a duty of care and breached its duty towards him. This was a precedent-setting ruling: never before had the CRA been told by any court that it had a duty towards individual taxpayers to treat them with care, and not to be negligent towards them.
No matter how many politicians in Ottawa may prefer to settle cases, the hired guns at the Department of Justice don't seem to have been copied on that memo. Their mandate is to litigate, and their client -- the CRA -- has infinitely deep pockets. So there is no reason to settle, and no reason to refrain from motions and appeals, regardless of how many lawyer-hours are spent.