They have decided that misinterpreting the decision by the judge in the convoy emergency declaration means that all pandemic actions are violations of the charter.
Because... reasons.
Tracking Canadians and limiting their mobility, in their own country, were Charter violations, full stop. If a Conservative government did this to the citizenry, Liberals would be screeching.
ArriveScam cost overruns, were just the low hanging fruit, which became the straw that broke the camel's back.