In addition, most of these communities are tiny (<1000 people) and often do not have quality Internet access. The chances of there being active local OSM mappers in these areas are essentially zero.

For all its faults, CANVEC is literally all we have in these areas, and given the sheer size of the north, it's just not worth it to spend hours per tile going through everything with a fine tooth comb.

Nunavut is not Germany.