What percentage of the $10 (CAD, tax free) entrance fee do you think the court should award in damages?
Putting that aside, you don't just sue for money, you can sue for different outcomes and injunctive relief. For example you could sue to have the results released as planned.
Injunctive relief for not publishing known to be incorrect test rankings? Not likely.
A FOI request might get you access to the rankings if you really cared... I'm not quite sure what the contours of FIPPA (roughly equivalent to America's FOIA) is with regards to our universities but I believe it generally applies to them. At the same time it could easily fall within privacy limitations.