The problem came with the freedom of assembly, which is bound up with the right to protest ... and long curtailed with restrictions from causing substantial disruption.
That last part was the line crossed when roads were shutdown for days on end, horns blared round the clock, etc.
Additionally, IIRC, the Canadian Gov't didn't debank individuals for the act of donating .. they froze accounts that donations were flowing into. The last time this came up in a forum several people linked to discussions in the Canadian Question time (or some equivilant) where "gotcha" questions were being posed about whether the law in question could be used to debank individuals .. as it was broad legislation targeted toward shutting down the protests by drying up funds the answer "yes, but ..." .. followed by a general failure to produce any non core individuals that had their general savings frozen - just the accounts used to collect donations and some(?) organisers taking part (again, IIRC).